Mustang Forums - View Single Post

TUFF 4.6 · 03-30-2008, 01:15 PM

Is it a catted or offroad X pipe? If its an offroad x pipe then do what Stan said. These have to go inline with back O2 senors. They tell the ECM that all is lovely.

03-30-2008, 01:15 PM	#3 (permalink)
TUFF 4.6 Senior Citizen Join Date: Dec 2007 Location: Richmond Va. Posts: 652	Is it a catted or offroad X pipe? If its an offroad x pipe then do what Stan said. These have to go inline with back O2 senors. They tell the ECM that all is lovely. __________________