Elevate your BMW F97 X3M or F98 X4M to new heights of precision and style with the AST Lowering Spring Set—a triumph of engineering crafted for those who demand more from every curve. Forged from premium high-tensile chromium-silicone wire, hand-selected by AST’s expert engineers for its unmatched quality and consistency, these springs redefine performance. Cold-wound, heat-treated, and shot-peened, each spring undergoes a meticulous process to enhance hardness and durability, finished with phosphate treatment and a robust powder coating that ensures longevity beyond your vehicle’s lifespan. With a 30mm drop front and rear, this set delivers a lowered stance that’s as aggressive as it is refined—perfectly tuned for the BMW enthusiast who craves both form and function.
Experience the road like never before with progressive spring rates that adapt to your drive, seamlessly compatible with EDC systems where applicable, and TUV-certified for uncompromising standards (certificates available upon request). Every spring is blocked and computer-tested before shipping, minimizing settling and ensuring instant, track-ready performance the moment they’re installed. This isn’t just a suspension upgrade—it’s a transformation, blending technical mastery with the iconic BMW spirit of innovation. Unleash the full potential of your X3M or X4M with AST Lowering Springs and command attention with every mile—because at BMW, driving dynamics are an art form, and this is your masterpiece.
Product Details:
- Progressive rates on most vehicles
- EDC Compatible (if applicable to vehicle)
- Each spring is blocked and computer tested prior to shipping, which reduces any settling once installed on the vehicle
- Most of our spring applications are TUV Certified and certificates can be provided upon request
Lowering Range:
- Front - 30mm
- Rear - 30mm