Welcome to HAN. :cheers: Enjoy your stay.
Just as an FYI: "ITR" specifically refers to the limited edition Integra - based on the DC2 chassis and available in America from 1997 to 2001. It has numerous modifications to chassis and drivetrain that set it apart from the RS/LS/GS/GSR model line.
Your 91 Integra RS is not equivalent to the Integra Type R.
Once again, welcome.