MAD M3 M4 G80 G82 S58 Secondary Cat Delete Pipes Upgrade your BMW's exhaust system with the MAD M3 M4 G80 G82 S58 Secondary Cat Delete Pipes, engineered to remove the restrictions caused by the factory secondary catalytic converters. By improving exhaust flow and reducing back pressure, these pipes enhance turbo spool. The result is a more aggressive exhaust. Designed with precision and constructed from premium materials, these pipes offer a straightforward installation process with a guaranteed perfect fit. Why Choose MAD Secondary Cat Delete Pipes? Fabricated from high-quality T304 stainless steel with mandrel bends for optimal durability and flow. Features precision TIG-welded seams for long-lasting performance. Slip-on design simplifies the installation process. Includes heavy-duty stainless steel clamps for a secure fit. Unlocks improved exhaust flow, enhanced power, and a deeper, sportier exhaust tone. Vehicle Compatibility: 2020+ BMW G80 M3 2020+ BMW G82/G83 M4 2020+ BMW G87 M2 Take your BMW's performance and sound to the next level with MAD's expertly crafted secondary cat delete pipes.