12 pcs Stainless steel bolts included and 1 pcs Allen key
Easy installation
Guaranteed increase in performance; improved 80-150 RPM &1-2 MPH. Made of CNC machined 6061 T6 aluminum, and finished in a beautiful anodized black coating. Lightweight, rust resistant, and easy install (30 min).Includes 12 stainless steel bolts (1.00 X 70 soc cap A2) and an M5 Allen wrench. Made in the China.For 1503CC& 1603CC 4TEC Rotax (Naturally Aspirated orsupercharged) Engine Only!