• AST Suspension Lowering Springs (30mm/20mm TUV) - 2005-2012 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
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AST 30mm/20mm E90/E91 Lowering Springs | BMW 3 Series Touring (E90/E91) (ASTLS-14-391)

AST 30mm/20mm E90/E91 Lowering Springs | BMW 3 Series Touring (E90/E91) (ASTLS-14-391)

ASTLS-14-391

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$295.07 USD
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The AST 30mm/20mm E90/E91 Lowering Springs are high-performance suspension components designed specifically for the BMW 3 Series Touring models from 2005 to 2012. Crafted from premium high tensile chromium-silicone wire, these springs are engineered for durability and consistent performance. 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 improved handling, reduced body roll, and a lowered stance for enhanced aesthetics and stability. These springs are built to withstand the rigors of daily driving and spirited performance, offering a balance of comfort and performance.

Designed for 2005-2012 BMW 3 Series E90 and E91 models, these lowering springs are a direct replacement upgrade for the factory suspension. They are suitable for street use, offering improved cornering and a sportier look without sacrificing ride quality. Installation is straightforward as they are bolt-on components compatible with the original strut assemblies. The kit includes the necessary springs for both the front and rear of the vehicle, providing a consistent lowering of 30mm at the front and 20mm at the rear. These springs are ideal for enthusiasts seeking a lowered stance and enhanced handling on daily drivers or spirited drives, ensuring a reliable and performance-oriented upgrade.

Overview

AST Lowering Springs for the 2005-2012 BMW 3 Series (E90/E91) 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-14-391
  • Product: AST Lowering Springs
  • Production Years: 09/2005-10/2012
  • Model Years: 2005-2012
  • Make: BMW
  • Model: 3 Series
  • Chassis: E90/E91
  • Model Note: -
  • Note 1: Not suitable for 4WD (four-wheel drive) cars.

Additional Vehicle Fitment

  • 2005 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
  • 2006 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
  • 2007 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
  • 2008 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
  • 2009 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
  • 2010 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
  • 2011 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
  • 2012 BMW 3 Series 325i/330i/316D/318D/320D Touring (E90/E91)
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