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AST Suspension

SKU: ASTLS-14-341

AST Suspension Lowering Springs (20MM/20MM TUV) - 1986-1993 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)

$ 330.83
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AST Lowering Springs for the 1986-1993 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.

Lowering Range

  • Front: 20MM
  • Rear: 20MM
  • TUV Certified? Yes
  • Part Number: ASTLS-14-341
  • Product: AST Lowering Springs
  • Production Years: 05/1986-05/1993
  • Model Years: 1986-1993
  • Make: BMW
  • Model: 4 Series
  • Chassis: E30
  • 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.

Additional Vehicle Fitment

  • 1986 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
  • 1987 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
  • 1988 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
  • 1989 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
  • 1990 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
  • 1991 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
  • 1992 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
  • 1993 BMW 4 Series 420i/428i/430i/420D/425D Gran Coupe (E30)
Product StatusEstimated Handling Time
In Stock1 business day
Out of Stock4-6 weeks
Custom-Builds/Special Order4-6 weeks