The BMW F80 F82 F83 M3 M4 2015+ OEM M Performance Exhaust Retrofit With Carbon Tips is a high-quality aftermarket exhaust system designed for direct replacement in BMW vehicles. This is a genuine BMW M PERFORMANCE exhaust, comes complete with genuine BMW carbon fibre tips. This is a titanium exhaust backbox which comes with valves The exhaust is in great condition, the valves open and close like the original exhaust Lightweight and adds a great sound to an already amazing car It’s a “V1″ exhaust which has been professionally repaired with titanium braces similar to the V2, the crack has been professionally repaired also.