AST Suspension Lowering Springs (30mm/30mm) - 2013+ BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)

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-18-059
• 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 420i/428i/430i/418D/420D/425D Coupe (F32)
• 2014 BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)
• 2015 BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)
• 2016 BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)
• 2017 BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)
• 2018 BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)
• 2019 BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)
• 2020 BMW 4 Series 420i/428i/430i/418D/420D/425D Coupe (F32)