Ok yea that sounds like what it is, he has some decent mods done and I told him he needs o-rings or something. He has a 2000 24v with a nv5600 w SBDD 3850, he has ARP 12mm head studs, new head gasket, II SPS66, Sheid HRVP44, Edge Jammer Stage 5s, Flow Tubes, Edge Juice w Attitude (Edge soon to be replaced with a TST PM3) stacked w a Smarty, FASS 150, S&B intake, and a 4in straight pipe to 5in miter stack.