wowzers..lots of misleading info in here:

GSR/GS/LS/SE/RS all have 4-wheel disc brakes STANDARD! There are NO differences between subframes on these models. The GSR was equipped with a 24mm front sway bar, the submodels had a 22mm (94-7); 98-01 GSR submodels then upgraded to 24mm as well. GSR had 14mm rear whereas the 94-7 LS/RS/GS/SE coupes had 13mm (sedans had 14mm), then 98-01 ALL models (minus the ITR) upgraded to 14mm rears as well. There is NO difference in spring rates or dampener stiffness between the non-ITR models. The GSR did get a front strut bar STANDARD unlike the RS/LS/GS/SE models.

The RS does NOT have a stiffer chassis than the ITR, as the ITR has reinforcement in the roof, b-pillars, and the rear wheelwells and arch extensions were made thicker - including subframe reinforcement.

Brakes: same diameter rotors (front and back) among the non-ITR models.

94-5 GSR motors had a simple oil cooler equipped from the factory, 96+ GSR's did not.