F40 M135i GPF-Back Exhaust System BM129TP19 - Stage 1 Fast Road, Track Day, Daily Driver

Cobra Sport BM129TP19: the GPF-back exhaust for F40 M135i (2018-2019) owners who want proper flow, real tone and zero emissions compromise. Fits only with factory GPF and catalyst retained - no remap, no warning lights, full MOT legality.

• Chassis-specific: engineered for F40 M135i xDrive - not E82, not F20, not G42
• Stage 1 fast road & track day ready: 76.2mm mandrel-bent pipework, race box delete, free-flowing rear section
• Valved or non-valved: choose drive-mode control (valved) or full-throttle immediacy (non-valved)
• Tailpipe options: TP19 (4" chrome), TP38 (4.5" chrome), TP106-CF (4" carbon), TP107-CF (4.5" carbon)
• Search terms covered: F40 exhaust, M135i GPF-back, BMW 135i decat-back, F40 track day exhaust, fast road exhaust F40, daily driver M135i exhaust, show car exhaust tips