I have an Injen CAI, Thermal R&D catback and a DC 4-1 ceramic coated header for sale. It was on my 00 GSR that I traded in. I had about 3k miles worth of use on them. They gave great power up top without sacrificing midrange as long as you set your ignition timing to 18 deg. BTC. Make me a reasonable offer. I would prefer local pickup so if anyone from MD/VA/DC is interested, hit me up.