Exhaust and MPG?

[Good Times]

Does a new exhaust system, not an OEM, increase your mpg? If that's true what exhaust system does the best?
I looked up exhaust on ebay and saw this one: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2460467462&category=33636
I read the mpg improvement and thought, that looks pretty good, even though there power does increase much. Has anyone used one of these?

 

[jimbo74]

i have never heard of that kind of exhuast.... and frankly, dont really beleive their "dyno" run numbers....

flowmaster, borla, gibson and others are the normal exhuasts that are tried and trued......

an aftermarket exhuast can imporove mileage, however, this normally means that the engine sounds a little bit meaner and more aggressive, and i have found that when doing this, most people tend to "hotrod" their driving style and this in turn eats up more gas... its kinda a mixed blessing

 

[BeauJ]

It will help but like Jim said, that purr of the exhaust gets addicting, and you'll find that your right foot has gotten heavier

 

[Frank D]

ehaust mpg

Put K&N filter and Magnaflow muffler on my Ranger truck don,t know the reading on HP but definitely noticed a diff.Also picked up 5 mpg on the hwy.Selling truck going to do same to Explorer