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AST Lowering Springs 30mm/20mm F&R | BMW 3 Series E90 (ASTLS-14-389) (SPF14-389)

AST Lowering Springs 30mm/20mm F&R | BMW 3 Series E90 (ASTLS-14-389) (SPF14-389)

SKU:ASTLS-14-389

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Regular price $277.25 USD
Regular price $323.45 USD Sale price $277.25 USD
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The AST Lowering Springs for the BMW 3 Series E90 (2005-2012) are high-performance suspension components designed to improve handling and aesthetics. Crafted from premium high tensile chromium-silicone wire, these springs are handpicked by AST engineers for their consistent quality and durability. Each spring undergoes a meticulous manufacturing process, including cold winding, heat treatment to enhance hardness and reduce internal stresses, followed by shot peening, phosphate treatment, and powder coating to ensure longevity. The progressive rate design on most vehicles provides a balanced ride with improved cornering stability and reduced body roll, making them suitable for enthusiasts seeking enhanced performance and a lowered stance.

These springs are engineered specifically for the E90 chassis, fitting 2005-2012 BMW 3 Series models. They are intended for street and performance driving, offering a lowered ride height of 30mm in the front and 20mm in the rear to improve handling dynamics and visual appeal. Installation is a direct bolt-on upgrade, replacing factory springs without the need for additional modifications. The kit includes the set of front and rear springs, providing a comprehensive upgrade for drivers aiming to optimize their vehicle’s suspension performance and aesthetics.

Overview

AST Lowering Springs for the 2005-2012 BMW 3 Series (E90) 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: 30mm
  • Rear: 20mm
  • TUV Certified? Yes
Vehicle Fitment
  • Part Number: ASTLS-14-389
  • Product: AST Lowering Springs
  • Production Years: 2005-02/2012
  • Model Years: 2005-2012
  • Make: BMW
  • Model: 3 Series
  • Chassis: E90
  • Model Note: -
  • Note 1: Not suitable for 4WD (four-wheel drive) cars.

Additional Vehicle Fitment

  • 2005 BMW 3 Series 335/325D/330D/335D Sedan (E90)
  • 2006 BMW 3 Series 335/325D/330D/335D Sedan (E90)
  • 2007 BMW 3 Series 335/325D/330D/335D Sedan (E90)
  • 2008 BMW 3 Series 335/325D/330D/335D Sedan (E90)
  • 2009 BMW 3 Series 335/325D/330D/335D Sedan (E90)
  • 2010 BMW 3 Series 335/325D/330D/335D Sedan (E90)
  • 2011 BMW 3 Series 335/325D/330D/335D Sedan (E90)
  • 2012 BMW 3 Series 335/325D/330D/335D Sedan (E90)
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