• Defender HD11 kit: RTD4 tuner, ECU unlock, clutch weights and pins, slip on exhaust
  • AA exhaust installed under the rear of a Can-Am Defender HD11
  • Close view of the AA muffler and head pipe mounted under the Defender HD11
  • Can-Am Defender HD11 rear view in snow with AA exhaust installed
  • Dyno chart: Defender HD11 stock vs AA L1 and L2 tunes with S3 clutch kit and exhaust
  • Dyno chart: Defender HD11 stock vs AA L1 and L2 tunes with S3 clutch kit, exhaust and intake
  • Dragy 0 to 60 reports: Defender HD11 stock vs AA S1 clutch kit and L1 and L2 tunes
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Aftermarket Assassins

2026 Can Am Defender HD11 Stage 2 Lock & Load Kit

2026 Can Am Defender HD11 Stage 2 Lock & Load Kit

113-1045-2

$2,195.00 USD
$2,195.00 USD
Sale Sold out
Shipping calculated at checkout.
Part Number

Final sale. This item is not eligible for return. Return and refund policy

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The Aftermarket Assassins Stage 2 Lock & Load Kit wakes up the 2026 Can-Am Defender HD11 with AA ECU tunes on the HP Tuners RTD4, a Stage 1 clutch kit and a slip on exhaust.

Why it holds up

  • Tuning alone was 1 second faster 0 to 60 MPH. With clutching it was 3.54 seconds faster, and with the S3 clutch upgrade and exhaust 4.74 seconds faster than stock.
  • AA tunes target the most horsepower allowed on the specified fuel while greatly increasing mid range power.
  • The Stage 1 clutch kit transfers power to the wheels more efficiently and is smoother than factory on takeoff.
  • The slip on exhaust flows more efficiently than stock with a deep, mellow sound.
  • Throttle by wire is adjusted per drive mode and gear: snappy in sport mode, still easy for crawling and trailer loading in lower modes. Throttle by wire limiters are disabled.

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 the ECU
  • One AA custom tune
  • ECU unlock, performed at the HP Tuners facility in Illinois
  • Stage 1 clutch kit
  • Slip on exhaust

Good to know

  • The RTD4 flashes the ECU, data logs engine parameters and views and erases trouble codes.
  • The ECU must be sent to HP Tuners for unlocking unless you buy an unlocked ECU outright or exchange ECUs. After the unlock the ECU can be flashed any time from your phone.
  • Standard unlock averages 10 to 15 business days: instructions for shipping the ECU to HP Tuners arrive within 1 business day of purchase, HP Tuners takes 5 to 10 business days to unlock it, and it returns by ground.
  • Express unlock averages 5 to 10 business days and is for the continental US 48 states only. A UPS Next Day Air label is provided and the ECU comes back by Next Day shipping.
  • Outright and exchange ECUs arrive unlocked but blank. They must be programmed to the vehicle with BRP BUDS2 software, which Can-Am dealers and many shops have. Line up a shop before choosing this option. Exchange ECUs normally look used but are in good operating condition.
  • Insure the ECU when you ship it. AA is not responsible for shipping delays or lost ECUs, and UPS has been the most reliable carrier in AA's experience.
  • An iPhone or Android phone with the HP Tuners TDN app is required.
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