Manley Valve - Exhaust, Valve-S/D 1.600,+.400 1993-chevrolet-camaro-esi3871565 This design can add up

This design can add up to 2

Minimize wheelhop and enhance the rear stability of your S550 or S650 Mustang by decreasing differential movement with polyurethane differential bushings from BMR Suspension

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Optimized for autocross and hillclimb

Manley Valve - Exhaust, Valve-S/D 1.600,+.400 1993-chevrolet-camaro-esi3871565 This design can add upManley 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