AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 1998-2000 BMW 3 Series 323i Sedan/Touring/Coupe/Convertible (E46) 500X 2008 Nissan 350Z 3

2008 Nissan 350Z 3

2013 Ford Mondeo 1

Economical replacement or upgrade solution that restores proper spring support and contributes to more stable suspension performance

SES (B299) are engineered to be up to the task with top spec

Shelby GT350R (S550/S650) from high performance 6061-T6 forged aviation grade aluminum

AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 1998-2000 BMW 3 Series 323i Sedan/Touring/Coupe/Convertible (E46) 500X 2008 Nissan 350Z 3The 5100 Series shock absorbers for the 1998 2000 BMW 3 Series 323i Sedan Touring Coupe Convertible (E46) utilize non inverted high performance monotube technology. In the past, these were known as the 4100 series. Monotube design shocks absorbers give your car a better performance than the standard twin tube design, the gas pressure is separated by a floating piston, and eliminates cavitation and airation within the oil chamber. The 5100 Series