Injected304
New Member
Hi, I'm looking to install 1 7/8 headers and 3" cats (see pic below) and reading from the multiple forums there seem to be many different opinions as to whether a tune is required. I am planning on running an OTR and getting a tune, however I'd prefer to do that later down the track. I'm wondering, would I be okay running a full exhaust for the time being? Im not too fussed about engine lights etc but I don't want to cause any damage. Car is otherwise stock aside from a 3" catback. Any info or advice would be appreciated!