Downpipe BMW G42 M240i, M240iX B58

High-quality Catless Downpipe for BMW G42 M240i, M240iX models with B58 (B58D) engine.

Our 4.5-inch design minimizes exhaust gas restrictions as much as possible, improving both the sound and the power output of the B58 engine.

Does not fit models with GPF / OPF.
Does not fit 2025+ Gen3 (B58N) models.

FITS THESE BMW MODELS:

BMW 2 Series: G42 [2021-2025]
M240i (275kw / 374hp) – B58D
M240iX (275kw / 374hp) – B58D
M240i (285kw / 387hp) – B58D
M240iX (285kw / 387hp) – B58D

Note: If your model is not listed here, look for it under another product. If you cannot find your model anywhere, contact us for assistance.

SPECIFICATION:

• Quality stainless steel (SS304)
• Downpipe diameter: 4.5″ (114mm)
• Flange to turbine diameter: 134mm
• Connection to exhaust (stock): 80mm
• Two sockets for lambda (oxygen) sensors

OEM reference part numbers: 18 32 8 682 745, 18328682745, 8682745, 18 32 8 682 746, 18328682746, 8682746