The Blackout Performance Series Exhausts are assembled on a durable 6063-T6 aluminum alloy shell, with magnesium and silicon as the alloying elements. This exhaust system replaces the stock silencer. 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. The Blackout Finish is a specialized matte colored ceramic coating that is formulated to withstand extreme temperatures. 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 RZR PRO XP with this HMF Performance Series Exhaust today! *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. *Quiet Core* This Quiet Core is an insert made of 201 Stainless Steel and installs on most HMF exhausts in seconds. It's designed for sound sensitive riding areas and decreases the sound level approximately 3-6dB. Works with Performance Series, Swamp & Swamp XL Series, Penland Series, and Signature X Series. - Our HMF Blackout Exhausts generally ship out within 10-12 business days! - Fits: Polaris RZR PRO XP : 2020+ / Polaris RZR PRO XP 4 : 2020+ - Will give your machine more power - Made in the USA! - Get that Deep, aggressive tone!