There's plenty of goodies available for the SW21 but a lot of it is jap-market stuff. I would say its biggest problem is the lack of airflow into the engine bay combined with people significantly upgrading the power-producing ability of the motor which produces a lot more heat.

Ideally try to get a '93-'95 with ABS and LSD. The '93 got upgraded brakes plus bigger wheels and tires, beefed up transmission with optional LSD, ABS was optional. '91-'92 had smaller wheels, tires, brakes, no available LSD, weaker trans, and also optional ABS. Not a huge deal but I would at the very least highly recommend ABS.

Oh and watch out for snap oversteer, especially the off-throttle variety. :db: