OKay ITR , I will tell U my experience with 3 Ls-VTEC I have swap in my 90-93 integra . I am pretty sure that he has a fully built internals and Upgrade his piston inorder to beat an ITR. I had an LS-VTEC Turbo and I somke an S2000 on the freeway by like a whole 1 mile after ward I blew cuz I was running with a high compression intrernals.I also built an LS-VTEC with just USDM TypeR Piston and my clutch was no ready for a launch yet I ran a Fully BUILT LS VTEC on a 90-93 4door and I got somke by like 3 to 4 cars lenght.he had cams,Valve spring s retainers and USDM typeR Piston.... so I think U should know that there are a different in an stock built and a Fully Built LS-VTEC BY NOW!