Manley Valve - Exhaust, Valve-S/D 1.600,+.100Manley 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

Convenient Storage Options: Includes an inner pocket with a hook & loop patch for pistol holsters

there are situations that require rebound forces in excess of what standard passive adjustable shock absorbers and struts can provide

and the needle and seat combination can be changed out

A spherical rod end allows for precise rear-end adjustment

can be installed in 30 minutes or less with basic hand tools

These shocks are rebound adjustable with a comfortable fixed compression

UMI Performance extended length upper control arms are designed to center the rear wheels in the wheel well on the Impala SS

Our control arms are designed to replace the weak and rusted factory arms

A Watts link locates the rearend housing and eliminates lateral axle movement by keeping the differential perfectly centered under the car through the suspensions entire range of motion

Stock control arms often cause traction loss and poor handling due to weak materials and bushing deflection

UMI’s front springs are stiffer than stock to provide increased performance with decreased body roll and a lower center of gravity

All hardware and detailed installation instructions are included