ATI GM LS1 7.074 Harmonic Damper - SFI 18.1 Certified M59XL2 110 Series jackets are finished

110 Series jackets are finished with stylish contrasting armband stripes

We call it a "Rallye End" kit because it usually comes on the street legal Rallye style belts

Tool properly cradles the spark plug to consistently set plug gaps using a standard feeler gauge

Seat belts are offered in a wide range of colors and sizes with the ever popular all black hardware

ATI GM LS1 7.074 Harmonic Damper - SFI 18.1 Certified M59XL2 110 Series jackets are finishedThe patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance Chevy engines. ATI Performance Products is a company founded on innovation, precision and service. ATI harmonic Super Dampers add horsepower and torque to race, street and truck engines. ATI Performance Products is the creation of over 40 years of Transmission and performance component manufacturing and racing experience. Product Description: Harmonic