• AST Suspension Lowering Springs (30mm/30mm) - 2013+ BMW 4 Series 435i/440i/430D Coupe (F32)
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AST Suspension Lowering Springs (30mm/30mm) - 2013+ BMW 4 Series 435i/440i/430D Coupe (F32)

AST Suspension Lowering Springs (30mm/30mm) - 2013+ BMW 4 Series 435i/440i/430D Coupe (F32)

ASTLS-18-060

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$274.50 USD
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The AST Suspension Lowering Springs for the 2013+ BMW 4 Series (F32) are high-performance coil springs designed to lower the vehicle's ride height by 30mm. 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, and individual shot peening. The phosphate treatment and powder coating provide superior corrosion resistance and longevity, ensuring the springs maintain their integrity over the vehicle's lifespan. Featuring progressive rates on most applications, these springs improve handling, reduce body roll, and enhance the sporty stance of the vehicle without compromising ride quality.

Designed specifically for the 2013 and newer BMW 4 Series coupe models, including 435i, 440i, and 430D variants, these springs are a direct replacement for factory components. They are compatible with models equipped with Electronic Damping Control (EDC) systems, offering an optimized lowering solution that enhances both street and spirited driving. Installation is straightforward as bolt-on replacements, making them suitable for enthusiasts seeking improved handling and aesthetics. The kit includes the pair of springs necessary for the front and rear suspension, providing a balanced lowering setup. These springs are ideal for street performance upgrades, track days, or daily driving with a focus on improved stance and handling.

Overview

AST Lowering Springs for the 2013+ BMW 4 Series (F32) 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: 30mm
  • TUV Certified? Yes
Vehicle Fitment
  • Part Number: ASTLS-18-060
  • Product: AST Lowering Springs
  • Production Years: 07/2013-
  • Model Years: 2013+
  • Make: BMW
  • Model: 4 Series
  • Chassis: F32
  • 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

  • 2013 BMW 4 Series 435i/440i/430D Coupe (F32)
  • 2014 BMW 4 Series 435i/440i/430D Coupe (F32)
  • 2015 BMW 4 Series 435i/440i/430D Coupe (F32)
  • 2016 BMW 4 Series 435i/440i/430D Coupe (F32)
  • 2017 BMW 4 Series 435i/440i/430D Coupe (F32)
  • 2018 BMW 4 Series 435i/440i/430D Coupe (F32)
  • 2019 BMW 4 Series 435i/440i/430D Coupe (F32)
  • 2020 BMW 4 Series 435i/440i/430D Coupe (F32)
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