Scorpion Exhaust GPF Delete Midpipe For BMW M135i xDrive F40 GPF ModelThe Scorpion Exhaust GPF Delete Midpipe (SBMP083) for the BMW M135i xDrive F40 is a precision engineered upgrade that removes the restrictive factory Gasoline Particulate Filter (GPF). By eliminating this bottleneck, the system improves exhaust flow, sharpens throttle response, and unleashes a more dynamic and aggressive soundtrack from BMWs 2. 0 litre turbocharged engine. Constructed from T304 motorsport grade stainless steel, the Scorpion GPF Delete