exhaust
depending on your exhaust setup, you may loose some low end torque. the cat provides some backpressure which helps with the low end. if your low end goes down, your mpg may go down as well.
on the flip side of things, your top end should be happier... again it depends on your exhaust setup...
on the flip side of things, your top end should be happier... again it depends on your exhaust setup...







