Ok so I bought a 2003 10th in august of last year with 44k. The car came with a K&N cai and borla cat-back. The only things I have done to it so far is a quadrant, upr firewall adjuster, MGW short throw, and bbk o/r x pipe. I put the cats back on it though because I was not a fan of the sound of it without them. I am getting ready to install 2.75 upper 73.5 inch belt, SCT Xcal 3 with vmp tuning, NGK tr6 plugs. Curious as to what you think the car should make and any advise as to what I should do next. I'm in CO elevation about 5000 ft. Thanks in advance!!