Manley Valve - Exhaust, Valve-S/D 1.625,+.600 1989-pontiac-firebird-esi6878223 BMR manufactures its MM007 polyurethane

BMR manufactures its MM007 polyurethane motor mounts in its Florida facility from CNC-laser cut

dash rattles and quarter panel flexing

250” chromoly handling sway bar for better cornering

Use on trucks that have the UMI rear flip kit installed

Manley Valve - Exhaust, Valve-S/D 1.625,+.600 1989-pontiac-firebird-esi6878223 BMR manufactures its MM007 polyurethaneManley 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