AST Lowering Springs- BMW 4 Series Convertible (F33)
AST Lowering Springs- BMW 4 Series Convertible (F33)
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- 14-day returns
- Genuine parts
- Melbourne-based support
Universal fit
No vehicle selection needed.
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Vehicle fitment
This part is listed to fit the following vehicles.
In Melbourne? Fit it in our workshop.
We fit parts in-house at the RevZone workshop. Book a time and bring your car in.
Description
Transform your vehicle’s profile and performance with AST Lowering Springs. Engineered for drivers who demand a more aggressive aesthetic without sacrificing ride quality, these springs provide a significant reduction in ride height while working in perfect harmony with your factory dampers.
By lowering the centre of gravity, AST springs reduce body roll during cornering and nose-dive under heavy braking, resulting in a more stable and communicative driving experience. Developed through decades of motorsport expertise, each spring is cold-wound to prevent sagging over time and is designed to integrate seamlessly with modern electronic suspension systems.
- Optimised Centre of Gravity: Lowers the vehicle to improve both visual appeal and high-speed stability.
- Superior Handling: Progressively wound rates ensure sharper steering response and reduced body roll.
- OEM Integration: Specifically engineered to function with factory dampers and electronic suspension modes.
- Premium Manufacturing: 100% Made in the Netherlands using high-tensile chrome-silicon steel.
- Durability Guaranteed: Finished in a signature powder coating for maximum corrosion resistance and backed by a lifetime warranty against breakage.
- Material: Cold-wound High-Tensile Steel
- Finish: Corrosion-resistant Powder Coat
- Design: Vehicle-specific progressive rates
- Origin: Made in the Netherlands
- 2x Front AST Lowering Springs
- 2x Rear AST Lowering Springs
- Installation Documentation
Note: Professional installation and a comprehensive wheel alignment are highly recommended after fitting to ensure optimal tyre wear and handling performance.
BMW 4 Series Convertible (F33) (Contact for exact years)
Specifications
- Part Number
- ASTLS-21-033
- Brand
- AST Suspension
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.
