{"product_id":"custom-tuned-rtd4-for-2026-can-am-defender-hd11-with-ecu-unlock-aftermarket-assassins","title":"Custom Tuned RTD4 for 2026 Can Am Defender HD11 (with ECU Unlock) - Aftermarket Assassins","description":"\u003cp style=\"box-sizing: inherit; margin: 0px; color: rgb(94, 94, 94); font-family: Montserrat, arial, sans-serif; font-size: 18px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: inherit;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eAA\/HP Tuners Device (RTD4) w\/ECU Unlock for 2026+ Can Am Defender HD11 Models\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"box-sizing: inherit; margin: 0px; color: rgb(94, 94, 94); font-family: Montserrat, arial, sans-serif; font-size: 18px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e \u003c\/p\u003e\n\u003cul style=\"box-sizing: inherit; text-align: left;\"\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eLooking for the best\/most badass ECU tuning available for your Defender HD11?  AA's performance tunes are readily available to gain horsepower and torque.  Through our advanced ECU tuning we are able to modify parameters correctly to gain you the power needed.  We are highly experienced in tuning these ECU types and this will show.  We go for the most horsepower allowable on the specified fuel, but also make sure mid range power is greatly increased.... all wrapped into a tested tune that is safe to run all day.\n\u003cul style=\"box-sizing: inherit; text-align: left;\"\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eAllows you to flash the ECU, data log engine parameters, and view\/erase trouble codes.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e**\u003c\/strong\u003e\u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eRequires ECU to be sent in to HP Tuners be unlocked UNLESS purchasing ECU outright or exchanging ECU's**\u003c\/strong\u003e\u003c\/u\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e\u003cspan\u003e \u003c\/span\u003e   \u003c\/strong\u003eAfter the initial unlock, the ECU can now be flashed at any time using your smart phone.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eStandard Unlock Process(Average 10-15 business days)\u003c\/strong\u003e:   Within 1 business day after purchase, we will send you instructions on sending your ECU to HP tuners.  You will be responsible for shipping the ECU to HP tuners.   Once at HP tuners, the ECU will take 5-10 business days for HP tuners to unlock.  Your ECU will then be sent back via standard ground shipping.  Turnaround time greatly varies on your location and how long ground shipping takes to\/from HP tuners.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eExpress Unlock Process(Average 5-10 business days):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e \u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e**For the continental US 48 states ONLY**\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e We will send you a UPS Next Day Air label and instructions.  You will need to attach this label to your own ECU package, then give the package to your local UPS drop-off location.  Once at HP tuners, the ECU will take 5-10 business days for HP tuners to unlock.  The ECU will then be sent back to you via Next Day shipping.  All other parts on the express flash order will be shipped ground unless otherwise specified\/selected during order checkout.  Keep in mind we cannot guarantee same day programming or control UPS shipping times\/delays.  We will do everything possible to turn the ECU around as fast as possible. \u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003ePurchase Unlocked ECU Outright:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e \u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eTHIS REQUIRES BRP CAN AM BUDS2 SOFTWARE OR A WILLING DEALER TO PROGRAM.\u003c\/strong\u003e\u003c\/u\u003e\u003cspan\u003e \u003c\/span\u003e  The new BRP ECU will come to you unlocked ,but blank, with no program.  This will require BRP\/Can Am BUDS2 software to program the blank ECM to your vehicle.  Your gauge cluster stores the ECU information, so this can only be done by bringing the vehicle to a local shop.  Many shops have this software, and all BRP\/Can Am dealers have this as well.  \u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003eYou'd want to find a local shop willing to complete the job for you before purchasing this ECU option. \u003c\/u\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eExchange Unlocked ECU:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e \u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eTHIS REQUIRES BRP CAN AM BUDS2 SOFTWARE OR A WILLING DEALER TO PROGRAM.\u003c\/strong\u003e\u003c\/u\u003e\u003cspan\u003e \u003c\/span\u003e  The exchange ECU will come to you unlocked but blank, with no program.  This will require BRP\/Can Am BUDS2 software to program the blank ECM to your vehicle.  Your gauge cluster stores the ECU information, so this can only be done by bringing the vehicle to a local shop.  Many shops have this software, and all BRP\/Can Am dealers have this as well.  \u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003eYou'd want to find a local shop willing to complete the job for you before purchasing this ECU option.\u003cspan\u003e \u003c\/span\u003e\u003c\/u\u003e  These ECU's will normally look used, but in good operating condition.  If worried about the looks\/outside condition of the ECU, we suggest simply purchasing one outright.  \u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e The core charge is $995 for this ECU.  We will refund $795 when your core ECU returns.  In the end, this ends up costing $200 more than the standard unlock process, but saves time.\u003c\/strong\u003e\n\u003cul style=\"box-sizing: inherit; text-align: left;\"\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eENSURE\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eyou\u003cspan\u003e \u003c\/span\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eINSURE\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eyour ECU for $500.  AA is not responsible for shipping delays or lost ECUs.  While more expensive over Priority Mail or FedEx, UPS has been the most reliable carrier in our experience.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eWe will follow up with instructions for ECU removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e \u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eIphone or Android and the HP tuners TDN application are required to use this device\u003c\/strong\u003e\u003c\/u\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003ePrice includes AA RTD4 tuner, OBDII to Can Am Diagnostic Port cable, necessary credits to flash your ECU, one AA custom tune (more tunes optional), and ECU Unlock which is performed at HP Tuners facility in Illinois.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eThe Can Am Defender HD11 is a great UTV with potential.  It's priced great and for just a little more we can get the power you are needing.  Our clutch kit is available for this model with even more gains by clutching for a higher RPM as this motor likes to rev more than what the factory allows.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e1 second faster when testing 0-60 MPH with just tuning!  When paired with clutching it's 3.54 seconds faster 0-60 MPH over stock!  \u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eBe wary of others claiming inflated HP gains as their Dragy results tell a different story.\u003c\/strong\u003e\u003c\/u\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eMuch quicker throttle response and power delivery giving a whole new feel to the vehicle\n\u003cul style=\"box-sizing: inherit; text-align: left;\"\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eThrottle by wire adjustments per drive mode\/gear give the vehicle a snappy feel in sport mode without being overly sensitive in lower modes, making it still great for crawling and loading in a trailer.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eThrottle by wire limiters disabled\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eMore throttle % in low gear and reverse as the factory limits these gears to not open the throttle fully\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eFan on\/off is lowered to 185\/180 degrees F for cooler engine and charge temps.  OEM is 203\/198.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eSpeed limiter removed in low and high gears.  Top speed will depend on resistance vs power and overall gearing\/tire size.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eRev limit increased to 8500 RPM for top speed\/overshoot.  Optimum peak RPM is 6200-6600\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e2 foot limiters removed (gas\/brake at the same time)\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eSeatbelt limiter disabled (Gauge cluster will still show seat belt warning)\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eTorque limitations properly raised for the higher RPM operation\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eWe HIGHLY suggest using with one of our clutch kits as the gains are huge with the clutch and tune.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eAA's wicked timing curve is safe for the fuel used, but we do a much better job of finding timing limits for ramp up\/more torque.  Many others simply focus on wide open throttle timing\/fueling.  The HD11 timing curve is extremely mild from the factory, and this is where most gains are made.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eAdaptive Timing:  The HD11 using adaptive timing with several timing tables, so you can run octane ratings from 87-93 octane on the same tune without any issues or having to change files.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eFuel tables modified to gain low end punch and safe yet powerful air\/fuel ratios.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eEngine safety:\u003c\/strong\u003e\u003c\/u\u003e\u003cspan\u003e \u003c\/span\u003e Our tunes utilize and properly reconfigure the knock adaption system in the stock ECU.  This system is very well designed to sense engine knock and retard ignition timing well before any motor issues would arise.   This means you have motor safety built in that is extremely well done and works fantastic.\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eA stock HD11 on our dyno was\u003cspan\u003e \u003c\/span\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e66 RWHP.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e Power gains shown with 91 octane fuel.\n\u003cul style=\"box-sizing: inherit; text-align: left;\"\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eLevel 1:\u003c\/strong\u003e\u003c\/u\u003e\u003cspan\u003e \u003c\/span\u003eMeant for stock exhaust systems only.  Gains an impressive\u003cspan\u003e \u003c\/span\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e+7 RWHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epeak and\u003cspan\u003e \u003c\/span\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e+8 RWHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethroughout the mid-range and shaves over 1 second off 0-60 MPH.  This calibration runs on 87 or 91-93 octane.  (Gains shown with 91 octane, 87 octane will be a few HP less)\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cu class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-2w c2-77 c2-7a\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; font-size: inherit !important; line-height: inherit; text-decoration: underline;\"\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eLevel 2:\u003c\/strong\u003e\u003c\/u\u003e\u003cspan\u003e \u003c\/span\u003e Fueling and timing changes meant to support aftermarket exhausts.  With AA muffler, gains over L1 tuning an impressive\u003cspan\u003e \u003c\/span\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e+5-6 RWHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epeak and\u003cspan\u003e \u003c\/span\u003e\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003e+10 RWHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eat higher speeds where the stock exhaust chokes.  This calibration runs on 87 or 91-93 octane.  (Gains shown with 91 octane, 87 octane will be a few HP less)\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003e\n\u003cstrong class=\"x-el x-el-span c2-2s c2-2t c2-3 c2-76 c2-1j c2-68 c2-77\" style=\"box-sizing: inherit; font-family: Montserrat, arial, sans-serif; color: inherit; letter-spacing: inherit; text-transform: inherit; font-weight: bold; font-size: inherit !important; line-height: inherit;\"\u003eWinter Tunes:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e Tunes are available in a winter version which has a higher fan turn on temp to keep heat hotter. Keep in mind you may need to block the radiator in colder climates for this to make a difference.\u003ca class=\"x-el x-el-a c2-2s c2-2t c2-7a c2-1g c2-1h c2-1i c2-v c2-7b c2-3 c2-2v c2-2w c2-2x c2-2y\" href=\"https:\/\/aftermarketassassins.com\/tech-blog\/f\/flashing-your-vehicle-using-the-aahptuners-rtd-device#\" rel=\"\" style=\"box-sizing: inherit; background-color: transparent; color: rgb(0, 117, 193); font-family: Montserrat, arial, sans-serif; cursor: pointer; overflow-wrap: break-word; display: inline; letter-spacing: inherit; text-transform: inherit; font-weight: inherit; text-decoration: underline; font-size: unset;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit;\"\u003eWhy AA tunes over others?  We have been tuning UTV's with CVT clutches for a long time, longer than almost anyone in our field going back to the 800 RZR.  Tuning a CVT vehicle properly is not an easy task as you have so many variables at one time.  We spend the time to wheel dyno (with actual UTV tires) correctly per modification, and have advanced ECU calibration and clutching knowledge to do so. Every change in horsepower can result in us changing clutching several times. We also develop most of our supporting mods so we know everything works correctly, and build parts to fit the vehicles needs.  Lastly and honestly the most important; we then back up our results with real world data logging on local trails and our facility on 110 acres.  It's this combination that truly makes the difference and why AA normally has a faster vehicle with the same or less rated tune horsepower.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/aftermarketassassins.com\/products\/ols\/products\/aa-custom-tuned-rtd4-for-defender-hd11-with-ecu-unlock\" style=\"color: rgb(255, 255, 255);\"\u003eAA Custom Tuned RTD4 for 2026 Can Am Defender HD11 (with ECU Unlock)\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Aftermarket Assassins","offers":[{"title":"Standard Unlock \/ Level 1 (Stock Exhaust): 87-93 Octane","offer_id":43385666699331,"sku":"119-1019","price":1195.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Level 2 (Aftermarket Exhaust): 87-93Octane","offer_id":43385666732099,"sku":"119-1020","price":1195.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95)","offer_id":43385666764867,"sku":"119-1021","price":1290.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 1","offer_id":43385666797635,"sku":"119-1022","price":1290.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 2","offer_id":43385666830403,"sku":"119-1023","price":1290.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter Tune 1","offer_id":43385666863171,"sku":"119-1026","price":1290.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter tune 2","offer_id":43385666895939,"sku":"119-1027","price":1290.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 1","offer_id":43385666928707,"sku":"119-1024","price":1385.0,"currency_code":"USD","in_stock":true},{"title":"Standard Unlock \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 2","offer_id":43385666961475,"sku":"119-1025","price":1385.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Level 1 (Stock Exhaust): 87-93 Octane","offer_id":43385666994243,"sku":"119-1028","price":1345.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Level 2 (Aftermarket Exhaust): 87-93Octane","offer_id":43385667027011,"sku":"119-1029","price":1345.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95)","offer_id":43385667059779,"sku":"119-1030","price":1440.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 1","offer_id":43385667092547,"sku":"119-1031","price":1440.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 2","offer_id":43385667125315,"sku":"119-1032","price":1440.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter Tune 1","offer_id":43385667158083,"sku":"119-1035","price":1440.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter tune 2","offer_id":43385667190851,"sku":"119-1036","price":1440.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 1","offer_id":43385667223619,"sku":"119-1033","price":1535.0,"currency_code":"USD","in_stock":true},{"title":"Express Unlock (+$150) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 2","offer_id":43385667256387,"sku":"119-1034","price":1535.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Level 1 (Stock Exhaust): 87-93 Octane","offer_id":43385667289155,"sku":"119-1037","price":2190.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Level 2 (Aftermarket Exhaust): 87-93Octane","offer_id":43385667321923,"sku":"119-1038","price":2190.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95)","offer_id":43385667354691,"sku":"119-1039","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 1","offer_id":43385667387459,"sku":"119-1040","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 2","offer_id":43385667420227,"sku":"119-1041","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter Tune 1","offer_id":43385667452995,"sku":"119-1044","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter tune 2","offer_id":43385667485763,"sku":"119-1045","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 1","offer_id":43385667518531,"sku":"119-1042","price":2380.0,"currency_code":"USD","in_stock":true},{"title":"Unlocked ECU Outright (Requires Can Am BUDS2) (+$995) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 2","offer_id":43385667551299,"sku":"119-1043","price":2380.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Level 1 (Stock Exhaust): 87-93 Octane","offer_id":43385667584067,"sku":"119-1046","price":2190.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Level 2 (Aftermarket Exhaust): 87-93Octane","offer_id":43385667616835,"sku":"119-1047","price":2190.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95)","offer_id":43385667649603,"sku":"119-1048","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 1","offer_id":43385667682371,"sku":"119-1049","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Level 1 (Stock Exhaust): 87-93 Octane + Winter Tune 2","offer_id":43385667715139,"sku":"119-1050","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter Tune 1","offer_id":43385667747907,"sku":"119-1053","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Level 2 (Aftermarket Exhaust): 87-93Octane + Winter tune 2","offer_id":43385667780675,"sku":"119-1054","price":2285.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 1","offer_id":43385667813443,"sku":"119-1051","price":2380.0,"currency_code":"USD","in_stock":true},{"title":"Exchange ECU (Requires Can Am BUDS2) (+$995) \/ Both Level 1 \u0026 2: 87 -93 Octane (+$95) + Winter Tune 2","offer_id":43385667846211,"sku":"119-1052","price":2380.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/8453\/5619\/files\/Screenshot_11-6-2026_213213_aftermarketassassins.com.jpg?v=1781227987","url":"https:\/\/ncbperformance.com\/products\/custom-tuned-rtd4-for-2026-can-am-defender-hd11-with-ecu-unlock-aftermarket-assassins","provider":"NCB Performance","version":"1.0","type":"link"}