![Dinan Free Flow Axle-Back Exhaust | F10 M5 | 4.4L Turbo V8 [S63] E85 · E86 Z4 M 3.2L I6 [S54] Back pressure is significantly reduced](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/DinanFreeFlowAxle-BackExhaustF10M54.4LTurboV8_S63.png?v=1740772621)
Pay in 4 interest-free payments of $264.37 Learn more
Ships within 48 hours · Estimated delivery Sep 1 - Sep 6
Back pressure is significantly reduced by eliminating the restrictive catalytic converter in the factory downpipe with our catless or high flow 200 cell race cat which results in faster spool
Available in 2
like the factory units
Barbed hose connection points for a slip proof fit
Built to last
Dinan Free Flow Axle-Back Exhaust | F10 M5 | 4.4L Turbo V8 [S63] E85 · E86 Z4 M 3.2L I6 [S54] Back pressure is significantly reducedDinan's Free Flow Axle Back exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points. Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration while reducing drone inside the vehicle, thanks to Dinan's exclusive Helmholtz Chamber and Butterfly Valve technologies. The exhaust
US$ 124.99
US$ 100.99
