I know it's possible, but I don't know the ins and outs, or the costs involved. There are many threads referring to this subject over at the corral.
www.corral.net
Hope this helps...
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98 GT
Bassani X-pipe, Dyno-Max Cat backs, 3.73 gears, Steeda shifter, FMS pullies, 87mm MAF, Roush cold air kit, Eibach springs, and Zex 75 shot