[5.7texan]

ive had my jba on for a couple of weeks now. Paid more than half that price since I got lucky and found some one in austin wanting to sell it to go to duals. My MPG have gone down not because of the exhaust but because my foot likes to hear it roar. the only negative thing is that it has a slight droan from 65 to 68ish so if i need to cruise that speed i'll keep it in fifth. but if im over 70mph then its not as noticeable. Dont know if this has anything to do with the exhaust but on a recent 2 hour trip i was able to get 20mpg, of course i was kinda feathering it cause i wanted to see how good it could be if i didnt drive it like i stole it.