Here's an interesting link showing dyno results for a number of Turbos, including my own. By the way, what does a stock 3.3 look like?
Turbo Guys Comment on this Dyno Sheet
Boost Addiction - honestly, I have it under control
1989 911 Turbo Cabriolet
Mods include: Kokeln IC, GHL Headers, Hooligan muffler, Modified K27 7200, BL WUR, LC-1 & XD-16, Bilstein Sports (4), TRG sway bars, Oversize torsion bars, Strut brace