May 20, 2009 at 1:48 am
#18725
Munch
Participant
I don’t see the need for you too. Only reason you should is if your using an O2 sensor for emissions control . I am unsure of what exactly slip ons really do and will look it up as best I can . However general rule of thumb is the exhaust should only help get things out ( only bad if the engine needs back pressure). Other then that I don’t see the need.