2022-2026 Polaris Patriot Boost 850 RMK / VR1 / Assault Performance Products & Parts | Speedwerx, Inc.
For tech info, dyno tests, and videos, check out the product pages below or click here - Technical Information & Videos
Update Feb 2024: Speedwerx Tunes and Mufflers Tested at DynoTech Research!
To see the full article from DTR CLICK HERE

Boost VR1 Low Elevation Calibration
- Stock Tune: 185.2 hp with Stock Muffler Mod
- Stage 2 - 91 Non-Oxy Pump Gas ECU Tune: 200.1 hp with Stock Muffler Mod / 200.0 hp with Std Lightweight Muffler
- Stage 2.5 - 91 Non-Oxy Pump Gas ECU Tune: 210.6 hp with Stock Muffler Mod / 212.4 hp with Std Lightweight Muffler / 213.6 hp with L2 Muffler
- Stage 4 - 110+ Octane Race Gas ECU Tune: 259.0 hp with L2 Muffler
- Long Exhaust Spring - 2.6''$4.10sku:ATV-LSReplace your old, stretched-out exhaust springs... Learn More
- Short Exhaust Spring - 2''$4.10sku:ATV-SSReplace your old, stretched-out exhaust springs... Learn More
- Speedwerx Decals // Straight-Up USA Horsepower Logo$0.00sku:SPXDWe have decals in a variety of sizes for your Snowmobile, ATV, UTV, Trailer, Race Car, Beer Fridge, or just about anywhere else you want to stick 'em! Learn More
- Speedwerx Catalog$0.00sku:CATALOG
NOTE: With the cancellation of HayDays in 2020, we have elected not to print a 2021 Catalog and will likely not be printing any more going forward. Please take a look around the website as you will find all the latest updates and many more products new and old that are not listed in the print catalogs, plus technical information and product videos that you will only find on the website.
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