QA1 5Q Series Twintube Rear Shock - C3-R5 Valve - Black Zinc - Circle Track 5Q683-5 External Bump Stop Kit lower the moment of inertia

lower the moment of inertia for quicker acceleration and increase horsepower

Improved Performance with OEM-like NVH levels

2011-2018 GMC Sierra 3500 HD

That way you know that the coil

1977 Pontiac Firebird Base CID 350 Naturally Aspirated GAS

QA1 5Q Series Twintube Rear Shock - C3-R5 Valve - Black Zinc - Circle Track 5Q683-5 External Bump Stop Kit lower the moment of inertiaQA1 5Q Series Circle Track Rebuildable Steel Twin Tube ShocksQA1 specializes in high performance suspension components, including shock absorbers, rod ends, spherical bearings, struts, springs, ball joints and other related items. With products to fit a wide variety of applications, they have solutions for the circle track, drag racing, street performance, and street rodding markets. At QA1, we believe vehicles were meant to be driven. From bolt on