Single-adjustable shocks are perfect for street-driven trucks that see occasional time on the track
QA1 offers stock mount aluminum adjustable shocks for 64-73 Mustangs as well as several other Ford and Mercury applications
Over time factory control arms rust which can weaken them while the factory bushings dry rot
The UMI P/N 2999 adds the finishing touch to allow full articulation of the GM 4-link rear suspension
a three-way adjustable 1″ Pro-Tour style sway bar allows fine-tuning of rear roll stiffness
Manley Valve - Intake, Valve-S/D 2.190 2002 pontiac firebird Single-adjustable shocks are perfect forManley 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