By removing the original restrictive catalytic converter located within the factory OEM downpipe, back pressure is hugely reduced, which effectively improves the engine’s breathing by allowing it to expel gases more quickly. This in return means faster throttle response, increased power output and a more aggressive exhaust note.

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.

Features:

• Made from stainless steel
• AIRTEC laser cut plaque
• Smooth bends to ensure increased flow
• Cast elbows to retain diameter
• Fits original and aftermarket exhaust systems
• Improved performance further enhanced with remap

Will fit the following models:

• 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

Please note: De-cats are sold for motorsport and off road use only and will not pass a UK MOT test or police road side checks.

AIRTEC Part No: ATEXHBMW1