Manley Valve - Exhaust, Valve-S/D 1.600,+.100 1999 pontiac firebird The panhard bar greatly increases

The panhard bar greatly increases rear end stability

causing leakage of damping fluid and increased engine movement

BMR springs are stress-relieved at 750 degrees F

Bilstein AK Series Suspension Shock Absorbers are designed for motorsports applications that require the use of the OE mounting components

Installation is straightforward and requires no welding

Manley Valve - Exhaust, Valve-S/D 1.600,+.100 1999 pontiac firebird The panhard bar greatly increasesManley 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