Get rid of the Flowmasters, and get a straight through design with an xpipe. Should probably look into getting at least 4.10s also, go with 4.30s though, they are very liveable! My car is a DD and I drive a ton! I have over 10,000 miles on my car with the 4.30s and I just had them installed the first of June 2003! No complaints with them. The KB would be a great addition if you want that type of blower.