2026 Can Am Defender HD11 Stage 1 Lock & Load Kit

The Aftermarket Assassins Stage 1 Lock & Load Kit combines AA custom ECU tuning on an HP Tuners RTD4 with an AA Stage 1 clutch kit for the 2026 Can-Am Defender HD11. It wakes up the HD11 and replaces the lazy factory clutching with a setup that is smoother on takeoff.

Why it holds up

• AA testing shows 0 to 60 MPH 1 second quicker with tuning alone and 3.54 seconds quicker with tuning plus clutching
• Throttle by wire adjusted per drive mode and gear: snappy in sport mode, still mild for crawling and trailer loading
• Fan on and off lowered to 185/180°F from the OEM 203/198°F for cooler engine and charge temps
• Rev limit raised to 8500 RPM, speed limiter removed in low and high gears
• More throttle in low gear and reverse, where the factory does not allow full throttle

Fits

• 2026 and newer Can-Am Defender HD11, all models

In the box

• AA RTD4 tuner
• OBDII to Can-Am diagnostic port cable
• Credits to flash your ECU
• One AA custom tune (more tunes optional)
• ECU unlock, performed at the HP Tuners facility in Illinois
• AA Stage 1 clutch kit

Good to know

• The ECU must be sent to HP Tuners to be unlocked unless you buy an unlocked ECU outright or exchange ECUs. After the unlock, the ECU can be flashed at any time from your smartphone.
• Standard unlock averages 10 to 15 business days, with the ECU at HP Tuners for 5 to 10 business days. Express unlock (continental US only) averages 5 to 10 business days.
• An outright or exchange ECU arrives unlocked but blank and must be programmed to the vehicle with BRP BUDS2 software, which Can-Am dealers and many shops have. Line up a shop before choosing that route.
• Insure the ECU when you ship it. AA is not responsible for shipping delays or lost ECUs.
• An iPhone or Android phone and the HP Tuners TDN app are required to use the RTD4
• RTD4 also data logs engine parameters and reads and clears trouble codes