AST Lowering Springs For BMW 3 4CYL. 1998-04/2005, Front 40 , Rear 30 F21 M135i/M140i 7 fine-tuning mappings

7 fine-tuning mappings

Genuine BMW M Performance part for perfect fit and premium quality

and M2 Competition owners who demand performance without compromise

Upgrade your Toyota GR Supra 3

or up to 10mm spacer

AST Lowering Springs For BMW 3 4CYL. 1998-04/2005, Front 40 , Rear 30 F21 M135i/M140i 7 fine-tuning mappingsThe AST Lowering Springs are engineered specifically for BMW 3 4CYL models from 1998 through April 2005, providing a precise and reliable solution for lowering your vehicles center of gravity. Manufactured using advanced Wafios coiling machines, these cold coiled springs ensure consistent quality and durability. Designed to replace the OEM springs directly, they offer a significant improvement in handling and stability without compromising the comfort