it was not easy to make the correct back pressure

Dyno-Proven Results: We have spent countless hours in R&D to ensure this is the BEST y-pipe on the market

the stock cam chain tensioner has no tension and can allow your machine to jump time

Dyno & field-tested

Spark Arrestor 2.5" 17-SA-4 Category_Default Category/SLED/Ski-Doo/4 Tec 1200 it was not easy toWear out your stock one or looking to add another spark arrestor to your dual outlet BMP exhaust? Here is the factory Polaris spark arrestor you will need. This fits all current RZR 1000 900 2. 5" Stainless Steel style slip on exhausts, our Due to the stronger exhaust pulse waves on performance mufflers spark arrestors will have decreased life span. Part #: 17 SA 4