I know that everyone with a 98 2.5rs seems to be upgrading to the 99 factory bumper or STI ver 5. Does any one have the part numbers or some to call to order parts? I think you need the rear brackets, not sure? help!

 

You need the bumper cover and the beam behind it. The cover by itself isn't too expensive, but the beam isn't cheap. You'll then need the appropriate lights or fog covers too. Expensive to do with new parts, but finding used is difficult since most cars get wrecked in the front end.