Fit like a factory muffler. Has a good sound on acceleration but cruising speed was not noticeable. Big weight savings for sure. Will Consider a tune at some point to gain performance.
RPM Can-Am HD11 Sport Muffler + Mid Pipe (2/3 Exhaust System)
Transform your Can-Am Defender HD11 workhorse into a true powerhouse with the RPM SXS 2/3 Performance Exhaust System! Unlike basic slip-on mufflers that leave factory piping restrictions behind, this complete bolt-on upgrade replaces both the restrictive factory muffler and mid-pipe. By increasing overall piping diameter, this system maximizes exhaust flow, significantly lowers exhaust gas temperatures (EGTs), and drops overall bed heat while keeping sound levels close to stock.
Crafted from premium 304 stainless steel and 100% TIG welded for maximum durability, the RPM 2/3 system installs effortlessly using all factory mounting points, OEM hardware, and included factory donut gaskets. It is designed to reuse your stock mid-pipe heat shields (new rivets included for a clean reinstall) and accepts factory heat panels seamlessly. You get a noticeable 3 to 5 HP gain on stock machines—and drastic power improvements on tuned setups—all while maintaining pristine drivability and quiet, ear-friendly operation.
Proven Power Gains: Delivers an instant 3–5 HP gain on stock machines, with substantially higher power gains on tuned setups.
Complete 2/3 System Upgrade: Replaces both the factory muffler and mid-pipe to eliminate flow restrictions that slip-ons miss.
Cooler Operating Temperatures: Significantly lowers EGTs and bed heat to protect critical components and increase reliability.
Refined & Stealthy Sound Profile: Only 1 dB louder than stock at idle for a satisfying startup rumble, and only 2.5 dB over stock at 3,000–5,000 RPM—zero harsh drone or ear fatigue.
304 Stainless Steel Construction: Premium aircraft-grade stainless steel inside and out, 100% TIG welded for maximum strength and corrosion resistance.
Reuses Factory Heat Shields: Engineered to retain factory mid-pipe heat shields and heat panels (includes new installation rivets).
Direct Bolt-On Replacement: 100% direct drop-in setup that retains all OEM mounting points—no cutting, welding, or modifications required.
No Tune Required: Runs safely on stock ECU mapping, though highly recommended to pair with a tune to unlock maximum horsepower.
Massive Weight Savings: Sheds significant weight off the rear end compared to the heavy, bulky factory exhaust assembly.
(1) RPM SXS 304 Stainless Steel 2/3 Muffler & Mid-Pipe Assembly
(1) Factory Style Replacement Donut Gasket
(1) Heat Shield Reinstallation Rivet Pack
All Necessary Stainless Installation Hardware
Can-Am Defender HD11 (All Years, Models, Cab Configurations & 2/4-Seat Variations)
All orders typically ship within 2-4 business days of order being placed. Weekends, holidays, and weather may slow fulfillment down on order processing. Unless otherwise noted, backordered items will ship according to their estimated shipping times.
Overall rating: 5.0 / 5 from 3 reviews.
Fit like a factory muffler. Has a good sound on acceleration but cruising speed was not noticeable. Big weight savings for sure. Will Consider a tune at some point to gain performance.
Dave R. 5/5
RPM Can-Am HD11 Sport Muffler + Mid Pipe (2/3 Exhaust System)
It took no time to install and sounds great
Jason S. 5/5 Verified
RPM Can-Am HD11 Sport Muffler + Mid Pipe (2/3 Exhaust System)
Nice exhaust!
Chandler C. 5/5 Verified
RPM Can-Am HD11 Sport Muffler + Mid Pipe (2/3 Exhaust System)
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