AIRTEC Motorsport De-Cat Downpipes for BMW S63B44TU engine (M5/M6)
 
By removing the original restrictive catalytic converters located within the factory OEM downpipes, back pressure is hugely reduced, which in return means faster response, increased power and a more aggressive exhaust note.
 
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
 
Will fit the following models:
F10 M5
F06/F12/F13 M6
 
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.