Exhaust Header / RZR XP 900 Category_Default Category/SLED/Polaris/IQ 600/Engine \/ Exhaust You can see the airflow

You can see the airflow chart which shows our muffler vs the stock muffler

decrease engine temps

The Bikeman Big Bore Cylinder is a big upgrade for massive na power or building on top of the engine with a turbo

compressor surge

Exhaust Header / RZR XP 900 Category_Default Category/SLED/Polaris/IQ 600/Engine \/ Exhaust You can see the airflowThis performance tuned header is a great addition to your slip on silencer! Making an additional 5 HP this system can't be beat. With any of our slip on mufflers this system produces 9 10 HP over factory! Huge gains for your 900 RZR that keep the rest in the dust. Great horsepower and snappy torque gains, you will be sure to love this head pipe. Ceramic coated for a lasting durable finish that holds the heat inside the pipe. Fits all 2011 2014 RZR 900