• AST Suspension Lowering Springs (30mm/20mm TUV) - 2005-2012 BMW 3 Series 316i/318i/320i Touring (E90/E91)
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AST Lowering Springs 30mm/20mm F&R | BMW 3 Series E90/E91 (ASTLS-14-390) (SPF14-390)

AST Lowering Springs 30mm/20mm F&R | BMW 3 Series E90/E91 (ASTLS-14-390) (SPF14-390)

ASTLS-14-390

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$295.07 USD
$344.25 USD $295.07 USD
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The AST Lowering Springs for the BMW 3 Series E90/E91 (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 exceptional quality and metal consistency. Each spring undergoes a meticulous manufacturing process, including cold winding, heat treatment to enhance hardness and reduce internal stresses, and individual shot peening. The phosphate treatment and powder coating provide superior durability and corrosion resistance, ensuring longevity beyond the vehicle's lifespan. Featuring progressive rates on most applications, these springs deliver a balanced combination of ride comfort and improved cornering performance, making them ideal for enthusiasts seeking a lowered stance with enhanced driving dynamics.

Designed specifically for 2005-2012 BMW 3 Series models, these springs are a direct replacement for the factory components, offering a 30mm drop in the front and a 20mm drop in the rear. They are compatible with various chassis codes within the E90/E91 platform and are suitable for street and spirited driving. Installation is straightforward, intended as a bolt-on upgrade that maintains OEM mounting points. The kit includes the set of lowering springs, with no additional components required. These springs are perfect for drivers aiming to reduce body roll, improve handling, and achieve a more aggressive stance without sacrificing daily comfort.

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-14-390
  • 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 316i/318i/320i Touring (E90/E91)
  • 2006 BMW 3 Series 316i/318i/320i Touring (E90/E91)
  • 2007 BMW 3 Series 316i/318i/320i Touring (E90/E91)
  • 2008 BMW 3 Series 316i/318i/320i Touring (E90/E91)
  • 2009 BMW 3 Series 316i/318i/320i Touring (E90/E91)
  • 2010 BMW 3 Series 316i/318i/320i Touring (E90/E91)
  • 2011 BMW 3 Series 316i/318i/320i Touring (E90/E91)
  • 2012 BMW 3 Series 316i/318i/320i Touring (E90/E91)
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