Originally Posted by readster1
just installed a flowmaster 40 on tuesday sounds awsome lots of looks,gas milage seems to be better with the added air to the air box and the new muffler breaths better sounds great happy happy happy
Readster1, not trying to come off like a jerk but do you really think your gas mileage went up all due to a muffler swap???? Seems like every time someone installs a small bolt on their mpg goes up. Heck I should be getting 30 mpg then with the stuff I added...lol.