• AST Suspension Lowering Springs (25mm/20mm) - 2014+ BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
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AST Lowering Springs 25mm/20mm | BMW 4 Series F36 (14-21) (ASTLS-15-2725)

AST Lowering Springs 25mm/20mm | BMW 4 Series F36 (14-21) (ASTLS-15-2725)

ASTLS-15-2725

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$255.30 USD
$297.85 USD $255.30 USD
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The AST Lowering Springs for the BMW 4 Series F36 (2014 and newer) are high-performance suspension components designed to improve handling and aesthetics. 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 shot peening to reduce internal stresses. The powder-coated finish ensures long-lasting corrosion resistance, making these springs a reliable upgrade for enthusiasts seeking improved stance and ride quality. Featuring progressive rates on most vehicles, they provide a balanced combination of comfort and performance, especially during spirited driving or track use.

These lowering springs are specifically designed for 2014+ BMW 4 Series F36 models, fitting various chassis and engine configurations within this range. They serve as a direct replacement for factory springs, offering a lowered stance of approximately 25mm at the front and 20mm at the rear to enhance handling dynamics and visual appeal. Installation is straightforward for those familiar with suspension work, and the springs are suitable for street and track applications. The kit includes the set of springs, with no additional components required. These springs are ideal for drivers seeking a performance-oriented upgrade that maintains ride quality while reducing body roll and improving cornering response.

Overview

AST Lowering Springs for the 2014+ BMW 4 Series (F36) 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: 25mm
  • Rear: 20mm
  • TUV Certified? Yes
Vehicle Fitment
  • Part Number: ASTLS-15-2725
  • Product: AST Lowering Springs
  • Production Years: 03/2014-
  • Model Years: 2014+
  • Make: BMW
  • Model: 4 Series
  • Chassis: F36
  • Model Note: -
  • Note 1: Not suitable for 4WD (four-wheel drive) cars.
  • Note 2: For cars with standard lowering, the indicated lowering will be reduced with the amount of the standard lowering.

Additional Vehicle Fitment

  • 2014 BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
  • 2015 BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
  • 2016 BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
  • 2017 BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
  • 2018 BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
  • 2019 BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
  • 2020 BMW 4 Series 418i/420i/428i/430i/418D/420D Gran Coupe (F36)
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