Drop chassis weight, sharpen throttle response, and unlock extra horsepower on your boosted Polaris with RPM’s Stainless Steel Lightweight Sport Muffler! Engineered specifically for the Polaris Patriot Boost platform across RMK mountain and VR1 trail setups, this high-flow sport muffler sheds a massive 8.5 lbs off the front chassis while delivering an additional +4 horsepower and crisp, instant throttle response across the powerband.
Constructed entirely from 100% TIG-welded 304 stainless steel, the RPM Sport Muffler weighs in at just 7.1 lbs and features an integrated snow guard sealing guard to prevent snow packing and keep fumes out of the belly pan. The exit tip features a heavy-duty dual-wall construction designed to handle severe trail impacts from hidden rocks, stumps, and dense timber. Despite the increased exhaust flow, the muffler delivers a deep, rich performance note that remains compliant—passing the SAE J-2567 stationary sound test at under 88 dB.
Installation is 100% bolt-on with no machine modifications or additional hardware required, and seamlessly retains the factory OEM EGT sensor fitting!
Performance Metrics & Weight Savings:
Horsepower Gain: +4 HP Increase
Muffler Unit Weight:7.1 lbs
Total Chassis Weight Savings: Sheds 8.5 lbs compared to the stock muffler
Material & Construction: 100% TIG-Welded 304 Stainless Steel
Further Sound Control: Available with an optional high-flowing perforated quiet core insert that installs directly into the base of the muffler exit tube for even quieter operation. (Requires drilling one small securing hole; includes all necessary stainless mounting hardware).
Features:
+4 HP Performance Gain: Optimizes backpressure and exhaust velocity to deliver immediate horsepower gains and razor-sharp throttle response.
Sheds 8.5 lbs of Front Weight: Drastically lightens the nose of your snowmobile for improved agility, easier side-hilling, and effortless carving.
Trail & Forest Compliant Sound Signature: Deep, throaty exhaust note that delivers an aggressive tone under load while staying compliant under 88 dB.
Integrated Snow Guard Sealing Guard: Seals cleanly against the belly pan to prevent snow ingestion and keep exhaust fumes out of the chassis.
Heavy-Duty Dual-Wall Exit Tip: Ultra-durable double-wall tip shields the exhaust outlet from crushed rocks, logs, and tree stump impacts.
Retains OEM EGT Sensor: Includes a pre-threaded sensor bung to accept the factory exhaust gas temperature sensor.
100% Direct Bolt-On Setup: Connects directly to OEM mounting locations using factory spring setups with zero tuning required.
What's Included:
(1) RPM SXS Stainless Steel Lightweight Sport Muffler Assembly
(1) Integrated Snow Guard Sealing Guard
(1) Integrated Factory EGT Sensor Mounting Bung
(1) High-Flow Perforated Quiet Core Insert Kit with Hardware(Optional - selected at checkout)
Fitment:
Direct bolt-on replacement for all Matryx chassis Polaris 850 Patriot Boost snowmobile models across all model years:
Polaris PRO RMK Patriot Boost 850 (Matryx Chassis): 2022–2026
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.
Fit and finish are perfect. Not too hard to install, just make sure you have a spring tool.
Nice throaty rumble at idle, And it screams like a banshee wide open!
I would definitely recommend the RPM exhaust can for the Polaris Boost. Great quality. Also purchased the RPM intake and boost piping. Great quality and hands down better then the OEM piping Polaris provided. Shipping was quick. Took only 5 days to arrive and I live in Alberta, Canada.
I'm a quiet exhaust person, it's on the upper limit of what I like but I have no issues with it.
The stainless steel can definitely has a quieter / deeper tone than the titanium can.
I did order the little screen you jam in the bottom I'm sure it will quiet it down just a little bit and fit my personality a little better.
Overall fit and finish is fantastic very happy.
Great Price, Fast shipping. Fit and finish are as good as anything out there. Design and Sound is what I was looking for. The Boost has run great after installation.
The quality of this muffler is above and beyond at it's price point when compared to others in the same ballpark. Nice and light, welds look great and everything fits like it should. I've put about 300 miles on it with my RMK and haven't had a single bog. It's worth the money to buy the quiet core at the same time as the muffler, even if you don't use it it's cheap insurance to drop the noise level a bit if you prefer. This is a mountain can and too loud for the trail in my opinion, that being said, I've heard louder mountain cans as well so this is a nice compromise for big weight savings and not too loud that you don't want to use it!
