Level 4 - Big Injector Tune - 110 Octane - 155 RWHP (+50 RWHP) with better throttle response **BMP Exhaust Required**

What's Included: (1) Vent Filter

High-Flow Slip-On Design: Delivers a much more free-flowing alternative to the highly restrictive stock muffler

The kit includes a cylinder spacer that serves two critical functions:

Designed and built in the USA

BMP Fiber-Reinforced Polaris Fuel Tank Nut Wrench Category_Default Category/SLED/Ski-Doo/GEN4 850 E-Tec Level 4 - Big InjectorBMP Fiber Reinforced Polaris Fuel Tank Nut Wrench If youve ever tried to service a Polaris fuel pump, you know the struggle: the large plastic locking nut is notorious for seizing up, and using pliers or a punch often results in cracked plastic and bloody knuckles. This purpose built wrench is designed to make fuel tank service fast, easy, and damage free. The BMP Advantage: Fiber Reinforced Polymer: Engineered for maximum rigidity to break loose