Catless Downpipe, 304 Stainless Steel

The Can Auto Performance catless downpipe is a high-performance exhaust component engineered specifically for the 3.0T engine platform found in 2018-2025 Audi S4 and S5 models. This V3 version utilizes cast 304 stainless steel, which provides superior strength, a smoother internal flow path, and improved thermal stability compared to factory components. The design includes an integrated heat shield that helps manage under-hood temperatures, protecting nearby electronics and engine bay parts. Installation of this downpipe is optimized for the B9/B9.5 platform, which simplifies the process compared to older Audi generations. While the estimated installation time is approximately two hours, professional installation is always recommended to ensure proper alignment and seal. This kit includes the necessary gaskets and bolts to facilitate the upgrade. Note that this catless downpipe is intended for specific 3.0T Audi applications and is not compatible with earlier B8/B8.5 S4/S5 platforms. Because this is a performance-oriented exhaust modification, check local regulations regarding emissions systems before installation.