I have a 100% stock 90 mustang GT 5sp.
A friend of mine was saying that I should install cutouts on my exhuast after the cat.. Sense my exhaust is stock that cut outs wouldn't rob me of too much backpressure and would actually help me out.. now with that being said.. should they be installed before the cat or after the cat? also i have mac shorty headers that will be installed at the same time. Is this worth it? or should I save my money up for a complete exhaust.
A friend of mine was saying that I should install cutouts on my exhuast after the cat.. Sense my exhaust is stock that cut outs wouldn't rob me of too much backpressure and would actually help me out.. now with that being said.. should they be installed before the cat or after the cat? also i have mac shorty headers that will be installed at the same time. Is this worth it? or should I save my money up for a complete exhaust.