3 inch exhuast good or bad?
#1
3 inch exhuast good or bad?
I'm thinking about installing a 3 inch cat back exhaust I already have the gt500 mufflers on my car. would I be loosing a lot of back pressure and loosing some performance or would I actually gain anything?
#2
zero gain. your stock 2.75" piping is already pretty much too big for your GT. The GT500 uses the same 2.75" piping your car already has. You'll need around 500hp to even consider the need to go bigger than 2.5", and 2.75" would need north of 650hp. 3" would be good until over 800hp. you're at half of that roughly. it's overkill. Even at those numbers (650rwhp for 2.75" you aren't leaving much on the table not going bigger. you could in theory go down to 2.5" piping and have enough to support your GT.
Last edited by TheDivaDanielle; 08-25-2014 at 04:42 PM.
#10
Longtubes are an excellent addition to a N/A or boosted mustang. They have a decent amount of power and sound to be gained. Shorty headers dont really do much for you. I mean if you are going to go through all the trouble of getting under the car, unbolting the factory headers, tuning it (which is 100% necessary), and bolting new headers up, then go ahead and go the whole 9 yards and get the most out of ur time and money. Get longtubes. preferably ceramic or natural finish. its not really an easy install either.
added bonus: its awesome to open ur hood and show who ever those longtubes going down the side of the engine.
added bonus: its awesome to open ur hood and show who ever those longtubes going down the side of the engine.