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E30 M3 AST Suspension

With their race-proven quality and performance, AST Suspension is one of Turner Motorsport’s recommended choices. Outfit your weekend warrior or track dedicated BMW with a suspension designed for optimum performance and adjustable to fit your driving style precisely. Their suspension ranges from street performance to competitive track use. All AST suspension for supported BMWs can be found on this page.
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AST Suspension 5100 Series Coilover Kit - E30 M3

Looking for a rugged, track ready coilover kit that screams quality? Then look no further than AST Suspension's 5000 series coil over kits. 

For starters, all 3 of their 5000 series coilovers (the 5001, 5002, and 5003 series) utilize a race proven inverted shock absorber design which produces an extremely strong damper that provides better suspension geometry under heavy lateral and braking loads as scene in road and track conditions.

Second, is the use of a monotube internal design. The separation of the oil and nitrogen gas by a floating piston allows for the use of a larger shock piston, increasing the damper performance and sensitivity. This adds more grip at the wheels which means more control and feedback from your vehicle.

Third is Adjustment. The 5100 series offers up to 12 different setting for rebound adjustment. Rebound controls the rate of extension of your shock absorber and with slight changes, can directly change the characteristics of the suspension and vehicle handling.

Coilover Kit Specifications:

  • Average lowering from 0.80" to 2.80" front and rear
  • Floating piston design with high-pressure nitrogen means no cavitation around the piston.
  • 14mm diameter internal shaft.
  • 44.5 mm diameter shaft struts, inverted.
  • Steel cylinder body shocks, inverted.
  • High end, track-ready suspension.
  • Rebound adjustable (”Singles”).
  • Low friction seal.
  • Adjuster knobs permanently mounted on the dampers.
  • Rubber bushings for ”eye” shock mounts.​
  • Rebuildable.

Fits the following BMW's:
1986-1990 E30 BMW M3

AST Suspension
Part #: ACU-B1502S
Price: $3419.10 (USD) 
$3799.00 (Sale - Save 10%)
Direct Ship
Quantity:   
AST Suspension 5100 Series Coilover Kit - E30 M3

Looking for a rugged, track ready coilover kit that screams quality? Then look no further than AST Suspension's 5000 series coil over kits. 

For starters, all 3 of their 5000 series coilovers (the 5001, 5002, and 5003 series) utilize a race proven inverted shock absorber design which produces an extremely strong damper that provides better suspension geometry under heavy lateral and braking loads as scene in road and track conditions.

Second, is the use of a monotube internal design. The separation of the oil and nitrogen gas by a floating piston allows for the use of a larger shock piston, increasing the damper performance and sensitivity. This adds more grip at the wheels which means more control and feedback from your vehicle.

Third is Adjustment. The 5100 series offers up to 12 different setting for rebound adjustment. Rebound controls the rate of extension of your shock absorber and with slight changes, can directly change the characteristics of the suspension and vehicle handling.

Coilover Kit Specifications:

  • Average lowering from 0.80" to 2.80" front and rear
  • Floating piston design with high-pressure nitrogen means no cavitation around the piston.
  • 14mm diameter internal shaft.
  • 44.5 mm diameter shaft struts, inverted.
  • Steel cylinder body shocks, inverted.
  • High end, track-ready suspension.
  • Rebound adjustable (”Singles”).
  • Low friction seal.
  • Adjuster knobs permanently mounted on the dampers.
  • Rubber bushings for ”eye” shock mounts.​
  • Rebuildable.

*This suspension system is a true coilover system and will eliminate the rear barrel springs. BMW rear shock towers are designed to be mounting points for a damper only - you MUST reinforce your rear shock tower in order to install true rear coilovers.*

**Additionally, converting to a true rear coilover system eliminates a significant amount of inner wheel clearance. It is possible that wheel spacers will need to be used, and in some extreme cases, fender modification to compensate for offset change.**

Fits the following BMW's:
1986-1990 E30 BMW M3

AST Suspension
Part #: ACU-B1504SCO
Price: $2204.10 (USD) 
$2449.00 (Sale - Save 10%)
Direct Ship
Quantity: