AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 1998-2000 BMW 3 Series 320i Sedan/Touring/Coupe/Convertible (E46) Escalade 2013 Infiniti G37x AWD

2013 Infiniti G37x AWD

The 5100 Series shock absorbers for the 2004-2013 BMW 1 Series 120d (E8X) utilize inverted / upside down technology

2010 Audi A3 2WD Sportback 55mm Strut (8P)

2015 Ford Focus S (C307/C346)

2011 Audi A5 3

AST Suspension 5100 Series Coilovers (Excludes Front/Rear Top Mounts) (Non Inverted) - 1998-2000 BMW 3 Series 320i Sedan/Touring/Coupe/Convertible (E46) Escalade 2013 Infiniti G37x AWDThe 5100 Series shock absorbers for the 1998 2000 BMW 3 Series 320i 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