BMW B58 OPF downpipe with Heat Shield G01 G05 G11 G12 G14 G20 G29 G30 G31 G42 2022+

Downpipe for BMW with the B58 engine — replaces the factory pipe right after the turbocharger. The larger diameter and smooth bends reduce exhaust restriction, so the turbo spools up faster and the engine responds more eagerly.

The downpipe is wrapped in a Heat Shield: a ribbed stainless steel sheet with ceramic thermal fibre, spot-welded to the pipe. It keeps heat inside the pipe, so exhaust gases flow faster and the exhaust note sounds better.

Compatibility:

• BMW M240i G42
• BMW 340i G20
• BMW 440i G22
• BMW 540i G30/G31
• BMW 740i G11/G12
• BMW 840i G14/G15/G16
• BMW X3 G01
• BMW X5 G05

For second-generation B58 with a particulate filter (OPF), 2022+. Fits both RWD and xDrive.

Specifications:

• Downpipe diameter: 4.5" (114 mm)
• Mid-pipe connection: ID 75 mm, OD 96 mm
• V-Band flange: ID 106 mm, OD 134 mm
• Fittings: 2 lambda sensor bungs, 1 pressure sensor tube
• Material: AISI 304 stainless steel, 1.5 mm wall

We recommend installation at a workshop followed by an engine software tune. Not sure about fitment? Send us your VIN — we will check it before payment.