
AST
AST Lowering Springs For BMW 4 xDRIVE 435i/440i/430D/435D xDRIVE 07/2013-10/2020, Front 30 , Rear 25
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The AST Lowering Springs are engineered to provide a precise and reliable solution for lowering the center of gravity of your BMW 4 xDRIVE models, including 435i, 440i, 430D, and 435D xDRIVE produced between 07/2013 and 10/2020. Manufactured with meticulous attention to detail, these springs are cold-coiled on state-of-the-art Wafios machines, ensuring consistent quality and durability that meets rigorous automotive standards.
Designed to replace the OEM springs directly, the AST Lowering Springs offer a progressive spring rate that balances enhanced handling and driving dynamics with the comfort you expect. Their construction utilizes premium materials that guarantee longevity and resistance to fatigue, supported by a lifetime warranty against breaking, which underscores the brand’s commitment to reliability and customer satisfaction.
By lowering the front by 30 mm and the rear by 25 mm, these springs effectively reduce body roll and improve stability during cornering, contributing to a more confident and controlled driving experience. This adjustment also enhances the vehicle’s aesthetic by providing a sportier stance without compromising ride quality. The springs’ compatibility with over 2500 vehicle models since 1966 highlights their versatile engineering and adaptability to various automotive applications.
Lowering Specifications
- Front lowering: 30 mm
- Rear lowering: 25 mm
Compatibility
- BMW 4 xDRIVE 435i (07/2013-10/2020)
- BMW 4 xDRIVE 440i (07/2013-10/2020)
- BMW 4 xDRIVE 430D (07/2013-10/2020)
- BMW 4 xDRIVE 435D (07/2013-10/2020)
Please note that these lowering springs are not suitable for 2WD (Two-Wheel Drive) vehicles. The AST Lowering Springs are an excellent choice for drivers seeking to improve their vehicle’s handling characteristics while maintaining a high level of comfort and reliability consistent with professional automotive standards.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.