:OMG: OK, adding TT is not as simple as I thought....Buy the Greddy kit, have it installed and voila. Good thing I have an excellent race shop here. Motorsports Performance in Frederick, MD built the fastest street legal Supra in the world. It ran the 1/4 in 7.08 @ 180! They squeezed 1,400 HP out of that beast. Although they specialize in Supras, I am sure they know a thing or two about turbos. I'm heading there tomorrow to talk about TT plans for my Z. Thanks Ernie for the info. I'll be taking your advice.