You'll probably be fine with an NA gearbox since you won't be beating on the car. I think (but I'm not positive) the Leg has a 3.90 ratio, so basically any 1.8 or 2.2 gearbox will match except for '93 and '94. I would either go all-stock WRX/STi on exhaust, or all 3" from the turbo back. If you're going to use a stock catback you're not going to get much benefit from a non-stock downpipe.
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FWD is the new AWD
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