I have a 2003 pontiac grand am gt v6 and im tryin to make the mufflers sound louder..?
I have
a 2003 pontiac grand am gt v6 and im tryin to make the mufflers sound louder but at the same time improve gas mileage... i heard flowmaster 40 are nice
... i have
atleast 200 dollars to spend, can someone tell me what items im goin to need.
links would be a lot of help... thanks...