Direct-fit secondary de-cat bypass for the BMW M4 F82 Coupe. Designed exclusively for use with the Cobra Sport valved cat-back (BM103) on pre-PPF models.
Full 3" T304 stainless steel pipework - gains of +21.25bhp and +9.2lb-ft torque confirmed
Includes all gaskets and fittings; requires two genuine BMW gaskets (18307851168), sold separately
Quad 3.5" tips, OEM drive-mode valve control (Comfort/Sport/Sport+) for aggressive yet civilised tone
For track day or fast road use only - EML likely, ECU remap strongly advised
