The complete upper kit is designed to reinforce the upper control arm mounting points
making them highly resistant to wear and tear
the SB009 is cold formed to better resist torsional fatigue and retain its "memory" far longer than the hot-formed bars used by many competitors
allowing for precise handling and articulation
BMR Suspension designed the MM461 to be the perfect (100% bolt-in) motor mount for any power level or application (street performance
Manley Valve - Exhaust, Valve-S/D 1.880,+.100 1987-pontiac-firebird-esi3246161 The complete upper kit isManley 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