looking for a cat back exhaust or just a muffler for my 01 WJ 4.0L. i don't want to spend a whole lot of money. maybe no more than $300 for a full exhaust and no more than $150 for just a muffler. it's my DD and i don't want it to be super loud, just a little louder than stock, a noticeable difference. but i rather it loud, aggressive sounding than ricy.