B baja2700 Member : mazdaspeed 6 Jan 16, 2010 #1 I dont know if im in the right section but might be, can i run a catless down pipe without a cobb or standback??
I dont know if im in the right section but might be, can i run a catless down pipe without a cobb or standback??
M m4tic : 2007 MS6 Jan 16, 2010 #2 you would need to extend the 02 sensor out of the exhaust stream using spark plug anti-foulers
