F90 M5 GTM Exhaust System

The RPi F90 M5 GTM Exhaust System is engineered to unleash the performance potential of the F90 M5 chassis. This full system utilizes RPi's signature straight-through design and uniquely integrates electronic valves controlled by the factory BMW servos. When these valves are opened, the exhaust delivers the aggressive RPi "Bad Boy GTM" sound. Conversely, when the valves are closed, the sound level is effectively reduced to match the stock exhaust, offering versatility for different driving scenarios. Built for both performance and durability, the GTM Exhaust System features a lightweight 304 stainless steel construction. It incorporates a center X-pipe that replaces the factory resonator, enhancing exhaust flow. The rear valve design is straight-through, complemented by a resonator-style muffler for quieter operation when the valves are closed. With the valves fully open, the exhaust path is unrestricted, allowing for maximum performance output. The system comes standard with 3.5-inch angled cut, dual-wall polished tips, with an optional 4-inch Black Edition Tip available for a distinct aesthetic. This exhaust system is specifically designed for the F90 M5. The full system is reported to provide power gains of 10-15 hp from 3.5k to 6k rpm.