AST Lowering Springs For BMW 3 4CYL. 1998-04/2005, Front 50 , Rear 40

The AST Lowering Springs for BMW 3 4CYL (1998-04/2005) represent a high-quality solution designed to enhance vehicle dynamics by lowering the center of gravity. Manufactured with precision on advanced Wafios coiling machines, these springs ensure consistent performance and durability. Their cold-coiled construction guarantees structural integrity and long-lasting reliability, meeting rigorous industry standards.

Engineered specifically for the front and rear suspension—front lowered by 50 mm and rear by 40 mm—these springs provide a balanced reduction in ride height. This adjustment improves handling and stability without substantially compromising the comfort level associated with original equipment manufacturer (OEM) springs. The progressive spring design optimizes suspension response, delivering enhanced road contact and driving precision.

AST’s commitment to quality is reflected in the lifetime warranty offered against breaking, underscoring the reliability and robustness of these lowering springs. Suitable for a wide range of BMW 3 Series models within the specified years, they serve as a direct replacement for OEM springs, facilitating straightforward installation and compatibility with existing suspension components.

Lowering Specifications

• Front lowering: 50 mm
• Rear lowering: 40 mm
• Cold-coiled for enhanced strength and durability
• Progressive spring rate for optimal balance between performance and comfort
• Manufactured using premium materials on Wafios coiling machines

Compatibility

• Designed specifically for BMW 3 Series 4-cylinder models from 1998 to 04/2005
• Direct replacement for OEM springs
• Compatible with original suspension components
• Applicable to a broad range of vehicle models, ensuring tailored fitment

By choosing AST Lowering Springs, you invest in a product that combines engineering excellence with practical performance improvements. These springs effectively lower your vehicle’s center of gravity, enhancing cornering stability and overall driving dynamics while maintaining the ride comfort expected from OEM specifications. The lifetime warranty further guarantees confidence in your purchase, making these springs a reliable upgrade for your BMW 3 Series.

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.