| Year | Make | Model |
|---|---|---|
| 2011-2019 | BMW | 3 Series VI (F30/F31/F34) |
| 2015-2019 | BMW | 3 Series VI LCI (F30/F31/F34) |
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AST 40mm/35mm F&R Lowering Springs | BMW 3 Series F31 (2012-19) (ASTLS-14-398)
AST 40mm/35mm F&R Lowering Springs | BMW 3 Series F31 (2012-19) (ASTLS-14-398)
SKU:ASTLS-14-398
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$247.03 USD
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$288.20 USD
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▶ Vehicle Fitments
The AST 40mm/35mm F&R Lowering Springs for the BMW 3 Series F31 (2012-2019) 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 springs are phosphate treated and powder coated, ensuring long-lasting corrosion resistance and a refined finish. Featuring progressive rates on most vehicles, these springs provide a balanced ride quality with improved cornering stability and lowered stance, making them suitable for enthusiasts seeking both performance and visual enhancement.
Designed specifically for the 2012 to 2019 BMW 3 Series F31 models, these lowering springs are compatible with vehicles equipped with Electronic Damping Control (EDC). They serve as a direct replacement for stock springs, offering a straightforward bolt-on installation. The kit includes front and rear springs, tailored to achieve a 40mm drop in the front and 35mm in the rear, optimizing the vehicle’s stance and handling characteristics. Ideal for street and spirited driving, these springs enhance the vehicle’s performance dynamics while maintaining ride comfort. Proper fitment and application are ensured for the specified model years, making them a reliable upgrade for daily drivers and performance enthusiasts alike.
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Overview
Overview
AST Lowering Springs for the 2012+ BMW 3 Series (F31) 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: 40mm
- Rear: 35mm
- TUV Certified? Yes
Vehicle Fitment
- Part Number: ASTLS-14-398
- Product: AST Lowering Springs
- Production Years: 06/2012-
- Model Years: 2012+
- Make: BMW
- Model: 3 Series
- Chassis: F31
- 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
- 2012 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2013 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2014 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2015 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2016 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2017 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2018 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2019 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
- 2020 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Touring (F31)
