AIRTEC Motorsport De-Cat Downpipe for BMW B58 Engine.

By removing the original restrictive catalytic converter located within the factory OEM downpipe, back pressure is hugely reduced, which in return means faster response, increased power and a more aggressive exhaust note.

Will fit:

All versions of BMW with B58 engines

F20 / F21 - 140i

F22 / F23 - 240i

F30 / F31 - 340i

F32 / F33 / F36 - 440i

G30 / G31 / G38 - 540i

G32 GT 640i

G12 740i

G01 X3 M40i

G02 X4 M40i

Supplied with an adaptor to marry up to the original exhaust system, it also fits aftermarket systems, making it the a perfect solution to replace the OEM downpipe.

One of the only manufacturers that offer a cast elbow to retain diameter!

Features:

Made from stainless steel

AIRTEC laser cut plaque

Smooth bends to ensure increased flow

Fits original and aftermarket exhaust systems

Improved performance further enhanced with remap