Rev9 DS Cast Exhaust Manifold for GM Vortec LS3 LS4 Silverado Sierra Avalanche 5.3L - Maximum* Arm Length: 16

- Maximum* Arm Length: 16 5/8"

Damping Levels 32 Levels Height Adjustment Yes Spring Rate(Front) 8 kg/mm (448 lbs/inch) Spring Rate(Rear) 5 kg/mm (280 lbs/inch) Spring Length(Front) 200 mm Spring Length(Rear) 170 mm Front Top Mount Yes

75" (Lower Side)

R: 220mm length

- 30% Harder that stock bushings

Rev9 DS Cast Exhaust Manifold for GM Vortec LS3 LS4 Silverado Sierra Avalanche 5.3L - Maximum* Arm Length: 16Rev9 cast iron exhaust manifold are extreme durable and easy bolt on installation. **Driver Side** Features: Extremely Strong Casting Designed To Integrate w LS Swap Improve Exhaust Efficiency Bolt and Gasket are NOT INCLUDED Fitment Chart: Compatible with Chevy Silverado 1500 1999 2013 4. 8L 5. 3L 6. 0L 6. 2L engine Compatible with Chevy Avalanche 1500 2002 2006 4. 8L 5. 3L 6. 0L 6. 2L engine Compatible with GMC Sierra 1500 4. 8L 5. 3L 6. 0L 6. 2L