Sorry to be one of those cross posters, but everything about the races is here: http://www.rx7club.com/showthread.ph...hreadid=317624
My engine mods are as follows:
turbo xs catless 3" downpipe w/ stock catback
blitz sus lm intake
xxtuning ceramic coated header w/ up-pipe
exedy single disc clutch w/ lightened flywheel
perrin turbo inlet hose
stock turbo ported and polished running stock boost level
The silver STi has similar mods except has full turbo-back titatanium Invidia exhaust, boost spiking to 18 pounds. Maybe Thorn will chime in.
Our STi's were about evenly matched on the highway when we ran eachother.