PISTON KIT / ('15-18) RZR 900 S Category_Default Category/ECU TUNING/Torque Link Gains 1-2 peak horsepower with

Gains 1-2 peak horsepower with even better low to mid range grunt

Highly recommended when purchasing BMP clutch weights and is required if changing out the primary spring

🔥 Much higher heat barrier — reflects and manages heat better

Level 1 - 91 Octane 128-130 RWHP (Stock boost levels with limiters raised and/or removed)

PISTON KIT / ('15-18) RZR 900 S Category_Default Category/ECU TUNING/Torque Link Gains 1-2 peak horsepower withSKU: M9057 2015 2018 Polaris RZR XP900 11. 5: 1 96mm +3mm oversize bore x 64. 4mm stroke piston kit Bore: 96mm Comp Ratio: 11. 5: 1 Piston #: M9057 CPK #: CPK9057 Rod #: Call Pin #: W787 2000 15CP1C Locks #: 787x050 SWL Rings #: CPN2 3780 Gasket Only #: C3563 SKU: M9057 Item #: M9057 Year Make Model: 2015 POLARIS RZR 900 S 2016 POLARIS RZR 900 S 2017 POLARIS RZR 900 S 2018 POLARIS RZR 900 S