Manley Valve - Exhaust, Valve-S/D 1.600,+.400 2006 Ford Mustang BBK long tube exhaust headers

BBK long tube exhaust headers outperform the competition in quality value and performance

giving you the versatility to drive to and from the track and still out handle the competition with the same sway bar

No tune is required 50 State Legal - CARB Approved

Race proven on the UMI LeMans

these products contain fewer detergents and are not suitable for street use

Manley Valve - Exhaust, Valve-S/D 1.600,+.400 2006 Ford Mustang BBK long tube exhaust headersManley 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