AST Lowering Springs For BMW 6 645Ci/650i/635D 03/2004-12/2010, Front 45 , Rear 40

The AST Lowering Springs for BMW 6 Series models 645Ci, 650i, and 635D (03/2004-12/2010) are engineered to enhance vehicle dynamics by lowering the center of gravity while maintaining a high level of ride comfort. Manufactured using advanced cold-coiling technology on premium Wafios coiling machines, these springs provide a precise fit and reliable performance tailored specifically for your vehicle.

Designed as a direct replacement for the original equipment manufacturer (OEM) springs, the AST Lowering Springs feature a progressive spring rate that optimizes handling without compromising daily drivability. Their robust construction ensures durability and consistent performance under various driving conditions. The springs come with a lifetime warranty against breaking, reflecting the brand’s commitment to quality and customer satisfaction.

Ideal for drivers seeking improved stability and a sportier stance, this set lowers the front suspension by 45 mm and the rear by 40 mm, effectively reducing body roll and enhancing cornering capabilities. The refined design also contributes to a more aggressive aesthetic, complementing the vehicle’s overall appearance.

Lowering Specifications

• Front lowering: 45 mm
• Rear lowering: 40 mm

Compatibility

• BMW 6 Series 645Ci (03/2004-12/2010)
• BMW 6 Series 650i (03/2004-12/2010)
• BMW 6 Series 635D (03/2004-12/2010)

By choosing AST Lowering Springs, you invest in a product that meets rigorous business standards for quality and reliability. These springs are meticulously crafted to ensure a seamless installation process and long-lasting performance. Whether for everyday driving or spirited excursions, they provide a balanced solution that enhances your BMW’s handling characteristics while preserving comfort.

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.

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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.