especially if you've upgraded to an aftermarket sway bar
These springs will lower your S550 and S650
hurting the effectiveness of the launch and possibly damaging your axles
Drivers who want maximum seat time
1982-2003 S10/S15 Front End Kit
Manley Valve - Exhaust, Valve-S/D 1.600, +.100, .3136 STEM 2012 chevrolet camaro especially if you've upgraded toManley Severe Duty Valves deliver the ultimate in strength, reliability, and high performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH 428 for exhaust and NK 844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400F, Manley exhaust valves endured 100 million cycles, while competitors failed after just