Yoshimura

Polaris RZR XP 900 2011-13 RS4 Full System

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The RS-4 Full System is impressive. It’s CNC mandrel bent using polished 18-gauge 304 Stainless Steel tubing for a long lasting, durable and rust-resistant life. Headers feature an over-sized step tube design for maximum power throughout the entire RPM range. Argon purged MIG welding ensures absolute top-quality fit and finish. Put it all together and you have a full system that is over three pounds lighter than the stock unit and increases overall power from idle to redline. In addition, the RS-4’s premium muffler packing helps meet the USFS noise specifications. The RS-4 comes with USFS approved spark arrester installed.

Polaris RZR XP 1000 2014 RS4 Slip On

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The RS-4 Slip-On uses the same technology that goes into our Full Systems, but features an easier-to-install application. This Slip-On muffler features 20-gauge 304 Stainless Steel CNC rolled and robot-welded canister shells, with a stainless steel end-cap. The RS-4’s premium muffler packing helps meet the USFS noise specifications while maintaining performance. The RS-4 comes with USFS approved spark arrester installed.