I've heard theres a custom exhaust that helps you get better gas milage suppose to give you 5 more miles per gallon and cant find out the name of it or where i can find it i"d be gratefull =)

There are no exhaust systems that will give you 5mpg extra.

There are no exhaust systems that will give you 5mpg extra.
unless someone stuffed a potato in your muffler hes right.

LOL! I sliced the exhaust off including the 2 cats from my chrysler concorde... I put 2 cherry bombs on where the cats used to be and ran srtaight pipes back from there. Got about 2-5 mpg extra and a LARGE difference in hp.