The Performance Series Exhausts are assembled on a durable 6063-T6 aluminum alloy shell, with magnesium and silicon as the alloying elements. This kit will replace the entire exhaust system from the turbo back. The Downpipe includes a flex joint and custom laser cut heatshield that mounts to the downpipe. You can add a high temperature powder coat for a completely sick, custom look. Features a 2 1/8 inch unrestricted core, it also has a special hole pattern in the core that allows the exhaust system to increase power evenly throughout the RPM range. HMF is well known for their deep trademark sounds, the Performance Series is described as a deep, aggressive, angry tone. You can also customize your Exhaust to have it match your machine making it that much cooler! This kit is the Dual Full System and it picks up 6 more horse power. This kit will weigh substantially less than your stock exhaust. These HMF Exhausts will perform on the highest level, giving you that extra boost you needed. Upgrade your RZR RS1 with this HMF Performance Series Exhaust today! **Fuel Tuning is not required when installing an HMF Exhaust on this machine. However, other modifications to the machine may require the need for fuel tuning to ensure the machine runs properly, and there is no damage to the exhaust system. *Blackout Available* You can now add a specialized matte colored ceramic coating that is formulated to withstand extreme temperatures. Click HERE to see this product. This finish will increase impact strength while increasing resistance to abrasion, corrosion, and chemicals. This Blackout Coating is capable of withstanding up to 1200 degrees Fahrenheit!! It is formulated to withstand the extreme temperatures from an exhaust system, making your exhaust have less intense exposure to the elements. *HMF DynoJet Power Vision Tuner* Get a whole new machine with the Power Vision Tuner. This Performance Tuner and data logging device offers the latest flash tuning technology, real time data monitoring, and other industry leading features. This is loaded with a file that is custom made for your HMF exhaust! Simply install this on your machine to flash your ECU with settings specifically designed for your machine!! - Our HMF Exhausts generally ship out within 1-2 business days! (Custom Colors may take 4-5 Days to ship) - Fits: Polaris RZR PRO XP : 2020+ / RZR PRO XP 4 : 2020+ - Will give your machine more power - Made in the USA! - Add custom colors - Get that Deep, aggressive tone! - Dual Full System