2010-2013 Mazda 3 Engine and Performance
Seriously, I've searched to the point of probably getting fired.
That being said. I need help.
I have a 2010 2.0L and have been told that the 09 header "should" fit.
Will it or wont it? (for vibrant or msds).
Also. If the o2 sensor is on the wrong side, should I just get the extender...