AST Suspension 5100 Series Coilovers (Includes Front/Rear Top Mounts) (True Coilover) - 1986-1990 BMW M3 2.3 (E30) Buick Part Number W71407G Part Name

Part Number W71407G Part Name Spring Saddle Assembly Vehicle 1969-1973 Mercury Cougar Boss 429 Bushing Color Black Bushing Material Polyurethane Color Black Installation Difficulty Moderate Installation Time (hrs) 1

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AST Suspension 5100 Series Coilovers (Includes Front/Rear Top Mounts) (True Coilover) - 1986-1990 BMW M3 2.3 (E30) Buick Part Number W71407G Part NameThe 5100 Series shock absorbers for the 1986 1990 BMW M3 2. 3 (E30) utilize inverted upside down technology. The inverted design is race proven technology and produces an extremely strong damper, providing better suspension geometry under heavy lateral and braking loads as seen in a road and track environment. The 5100 Series shock absorbers give your car a better performance than the standard twin tube design. With the 5100 Series suspension you can