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AST Suspension 4100 Series Coilovers

The 4100 Series shocks introduce high performance monotube technology at prices competitive with twin tube insert coilover kits. They include purpose built strut and shock bodies, shortened from stock lengths. All kits come with anodized aluminum adjusters that stay on the shock; no need to keep your pockets full of tools to make quick adjustments.

AST USA offers full rebuilding and revalving services for AST shocks at competitive prices. This includes quick turn around when you need it the most.

Benefits include:
  • Monotube design - gives the biggest piston sizes available
  • Floating piston design with high pressure nitrogen means no cavitation around the piston
  • Adjuster knobs permanently mounted on the dampers no fumbling for knobs
  • Fully threaded strut bodies allow maximum tire width without fender rolling or larger spacers
  • Rebuildable by AST-USA get the valving you want, when you want it.

  • Rebound Adjustable ("Singles")
  • 22mm diameter shaft struts, non-inverted
  • Steel cylinder body shocks, non-inverted
  • Rubber bushings for "eye" shock mounts
  • Optional spherical upper shock mount assemblies
  • Non-synthetic hydraulic fluid

All BMW AST Suspension 4100 Series Coilovers
View All BMW 325i Coilovers
BMW 325iPrice
(1990-1992) Includes: Camber Plates, Springs, and Spherical Rear Shock Mounts - Front Spring Rates: 60mm x 7x 600 lbs/in - Rear Spring Rates: 60mm x 5.5 - 680lb/in$2,958.00  Add to Cart
AST Suspension 4100 Series Coilover Reviews

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Parts Available: AVS-B1502S