Downpipe BMW Z4 G29 M40i B58

High-quality Catless Downpipe for BMW Z4 G29 M40i model 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 – will not fit European cars with 250kw / 340hp power output.

FITS THESE BMW MODELS:

BMW Z4 G29 [2019-2026]
M40i (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 8 689 449, 18328689449, 8689449, 18 32 8 682 788, 18328682788, 8682788