Valved Catback Exhaust for F9X M8

The F9X M8's S63 twin-turbo V8 deserves an exhaust that matches it. The Tone Valved Catback Exhaust is designed to unleash the beast that is the S63 engine, while also retaining valves and a muffler so the system stays quiet when you need it. Built in 304 stainless steel or grade 5 titanium, cutting significant weight over the factory system for a genuine bump in performance, with a range of tip finishes to match your build. Select X-pipe for a higher-pitched tone, or H-pipe for a lower-pitched tone. Choose no resonators for the rowdiest sound, or dual resonated for the least drone and maximum daily drivability. Every system is custom-made to order for a precise, bolt-on fit.