BMP Custom Primary Spring

These weights are put through a 5 step metal treating process for unbeatable durability and great looks

Arctic Cat Crossfire

Recommended for anyone installing exhaust parts on a machine over 1 year old

This allows you to adjust from 12 grams(lighter than stock for really high altitude)

Heavy Duty Head Studs / RZR 1000 Category_Default Category/SLED/Ski-Doo/GEN5 850 E-TEC BMP Custom Primary SpringThese heavy duty ARP head studs are a must when going big! We highly recommend head studs when going with a big bore kit, especially on the 1000 motor. Basically, anything over 140hp we recommend a head stud install. Comes with studs, washers, nuts, lube, and side bolts. Heavy duty ARP head studs for RZR 900 1000 XPT motors Needed when adding a big bore or turbo Includes: studs, washers, nuts, lube and side bolts Directions for install: (Tighten from