yea, you bought the wrong lip... you probably wanted one for a 94-97 bumper, or for a JDM bumper. USDM 98-01 have the part that wraps into the grille and is very "fitted" to the bumper.

All of the below are "OEM Type-R Style" lips for the integra

94-97
<BTW Mid Engine H22 swap...

98-01


JDM integra bumper lip


somebody should probably copy these images to the first post so you guys know what your are getting into with Integra lips.