ok here the thing my mom just bought a 08 GT mustang 5 speed and she wants it to be louder ive been lookin for some exhaust for it and have read that if u change to a offroad xpipe tht the check engine light will set is there any way around this? also if i were to leave the x pipe alone wht would b my best for mufflers to get something that is much louder and sounds good? thanks for any help also i heard that changing up your exhaust affects ur mpg is this true?
08 GT exhaust and mpg??
- Thread starter daviszx3
- Start date
NastyStang113
New Member
Well you'll need MIL Eliminators at the very least. I've heard a lot of problems with them not working though. To get rid of the CEL for sure you'd need to get a programmer like the Xcal3 and have the tuner turn off the rear 02s. I'd recommend Justin at VMPTuning.com, he does an AMAZING job on these cars. I think I'd do the O/R X Pipe first with the factory mufflers and see how she likes it. It's going to be pretty loud. I doubt you will see any mileage increase, but you will gain about 3-4 rwhp from the cats being deleted and about 15 rwhp from the tune.
Or on the contrary, If your mileage goes up, then it's because the exhaust is too loud and you are constantly afraid of getting a ticket or waking the neighbors.
neighbors... LAF....
autumn_again
New Member
maybe the borla stingers? if you want loud axle-back, macs has the boom tubes, slp has the loudmouth, pypes has the muffler delete. it'll be loud, and as far as i'm aware, axle-backs don't void warranty. I could be wrong though.
