Having some spare time on my hands today I decited to do the I/C mod removing the fins from the A/C condensor....time consuming but worth it.
I also did the throttle body heater bypass mod listed @ http://www.v6z24.com/mods/howto/?page=heaterbypass. The hose cost $10.00.
The total time for both of these mods and verifying there were no leaks was 3 hours.
Although I did not have my "G-tech" hooked up to verify any proven HP gains my "but dyno" can definately feel the differance. I can also feel the diferance in how cooler my throttle body and upper intake are after getting up to operating temps. (180 degrees for me).
I recommend these realitevely easy and low cost mods to all TGP / STE owners. I'll keep you posted in the next few weeks to see if there are any changes in MPG, or if unforeseen troubles arise.
GPChief
P.S. there are pictures and write ups on bith of these mods @ the www.v6z24.com and Turbo Grand Prix Garage http://home.att.net/~aldridgec/.