AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 2004-2013 BMW 1 Series 120d (E8X) whiteline-sway-bar 2012 Audi A4 FWD/Quattro (w/

2012 Audi A4 FWD/Quattro (w/ EDC Includes EDC Delete Module)

2011 Porsche 911 997 (w/o PASM) RWD

1985 BMW 3 Series 323i (E30)

1991 Audi 80 1

B Chassis Code BL/BP/BM/BR Bushing 1 Inner Diameter 19

AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 2004-2013 BMW 1 Series 120d (E8X) whiteline-sway-bar 2012 Audi A4 FWD/Quattro (w/The 5100 Series shock absorbers for the 2004 2013 BMW 1 Series 120d (E8X) 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 shocks allow rebound adjustment with