Goodmark rear valance for Challengers is CRAP. I have installed one, and even after modifycing the ends (vlance is too wide) it doesnt look all that nice...the opening for the exhaust cutouts are really bad.

Its a bad piece, id get an original and fix it or wait for AMD.

If youare in a hurry just get a used one, even if it was some poblems and fix it.

Goodmark Challenger decklids are also CRAP-