AST Lowering Springs For BMW 3 6CYL.+ 320D 10/1999-09/2005, Front 40 , Rear 30

The AST Lowering Springs are engineered to provide a precise lowering solution for your BMW 3 6CYL.+ 320D models produced between 10/1999 and 09/2005. Manufactured using advanced Wafios coiling machines, these springs are cold-coiled to ensure optimal strength and durability. Designed to reduce the vehicle’s center of gravity, they improve handling dynamics and driving stability without significantly compromising ride comfort.

These springs offer a direct replacement for the original equipment manufacturer (OEM) springs, tailored specifically to the vehicle’s suspension geometry. The progressive spring rate is calibrated to maintain the balance between performance enhancement and everyday usability, making them suitable for both spirited driving and regular road conditions. The front springs lower the vehicle by 40 mm, while the rear springs provide a 30 mm drop, resulting in a sportier stance and improved aerodynamics.

Crafted from high-quality materials and subjected to rigorous quality control, AST Lowering Springs come with a lifetime warranty against breaking, reflecting the brand’s commitment to reliability and longevity. Their extensive application range includes over 2500 vehicle models from 1966 to the present, demonstrating proven compatibility and versatility.

Lowering Specifications

• Front lowering: 40 mm
• Rear lowering: 30 mm
• Progressive spring rate for balanced comfort and performance
• Cold-coiled on premium Wafios coiling machines
• Durable construction with lifetime warranty against breaking

Compatibility

• BMW 3 Series 6CYL.+ 320D
• Model years: 10/1999 – 09/2005
• Direct OEM spring replacement
• Extensive application across more than 2500 vehicle models
• Engineered for specific vehicle suspension geometry

By choosing AST Lowering Springs, you invest in a product that meets high business standards for quality and reliability. These springs enhance your vehicle’s driving dynamics while maintaining the comfort expected from OEM components, ensuring a professional and dependable upgrade for your BMW.

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.

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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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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.