I don't know if you have a base of comparison but did the boost take long to build up? I know everyone wondered if the extra piping would add a lot more lag. The only thing I heard was STS saying that there was NO LAG, which didn't really make sense.

And thanks for your reply.

The kit has potential to be just as fast spooling as any other. The charge pipe length doesn't add much lag (in my unexpert opinion) :) the killer in the kit is the turbo sitting behind the stock cats. My stock car would start to spool at 3800ish and full boost at 4750 ish at 7 psi.