I have the Greedy exhaust, DC sport 4-1 Header and a high flow cat (picked it up at Partspeddler.com) not too bad just pre-measure your stock as I had to finese mine in place the O2 sensor was not quite in place I wanted it. Pass Sniffer and Emissions so oh well. I have a 98 Teg LS auto but you get a good response and the SRI will help it breath
Good Luck at 16 my first car was the family 1976 Volare Wagon with 130,000 miles on it it was white however with simulated wood and rust holes