Fuel Economy

[why?]

Originally Posted by malibuguy

i was thinking about switching out my main muffler for a DynoMax VT valved muffler...but fuck it, i'm just going to keep the car stock

odds are everything in the market is going to hurt the bottom end. I think there was an intake that actually added to the bottom end, but that's it. Odds are everything else is going to hurt gas mileage without thousands of hours of research and development.