Product Details

AST Lowering Springs for the 1982-1990 BMW 4 Series (E30) are manufactured from a premium high tensile chromium-silicone wire which is handpicked by AST engineers for its quality and metal consistency.

Each spring is cold wound and then heat treated to increase hardness and reduce internal stresses present after winding. Each spring is then individually shot peened, phosphate treated and then powder coated to outlast even the life of the vehicle.

Features

  • Progressive rates on most vehicles.
  • EDC Compatible (if applicable to vehicle)
  • Each spring is blocked and computer tested prior to shipping, which reduces any settling once installed on the vehicle.
  • Lifetime warranty on breaking.
  • Most of our spring applications are TUV Certified and certificates can be provided upon request.
Specifications
Part Number ASTLS-14-337
Product AST Lowering Springs
Production Years 11/1982-12/1990
Model Years 1982-1990
Make BMW
Model 4 Series
Chassis E30
Approximate Drop – Front 20mm
Approximate Drop – Rear 20mm
TÜV Certified Yes
Model Note -
Note 1 Not suitable for 4WD (four-wheel drive) cars.
Note 2 About 10mm less lowering for vehicles with M-sport suspension.
Note 3 About 10mm less lowering for vehicles with Adaptine M-sport suspension.

Vehicle Fitment

  • 1982 BMW 4 Series 418i Gran Coupe (E30)
  • 1983 BMW 4 Series 418i Gran Coupe (E30)
  • 1984 BMW 4 Series 418i Gran Coupe (E30)
  • 1985 BMW 4 Series 418i Gran Coupe (E30)
  • 1986 BMW 4 Series 418i Gran Coupe (E30)
  • 1987 BMW 4 Series 418i Gran Coupe (E30)
  • 1988 BMW 4 Series 418i Gran Coupe (E30)
  • 1989 BMW 4 Series 418i Gran Coupe (E30)
  • 1990 BMW 4 Series 418i Gran Coupe (E30)

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