Big Bore 550cc Replacement Pistons / AC Sno Pro 500 Category_Default Category/SLED/Arctic Cat/F1000 Because the weak factory plastic

Because the weak factory plastic diverter valve is prone to bleeding off boost

Stealth Recirculation: Perfectly pairs with your factory routing tube to recirculate pressure back into the intake

CA location

Another key benefit is the horsepower gain

Big Bore 550cc Replacement Pistons / AC Sno Pro 500 Category_Default Category/SLED/Arctic Cat/F1000 Because the weak factory plasticLooking for replacement pistons for one of the following big bore BMP motors? Look no further as we have them available for purchase. Sold individually. Comes with rings, circlips and in most cases the wrist pin. *Actual piston may vary from picture* No single action on your part is as important as proper engine break in BREAK IN RESPONSIBILITY Do not operate at full throttle or high speeds for extended periods during the first three hours of use.