I had a gap in my bumper where the fender meets it after i rear ended someone.
Anyway i took it off to fix the gap and remove the resonator.
When i put it back the side that had the gap was fixed but then there was a different gap on the left side buy the headlight that was not there before.

I noticed that foam padding was loose behind the bumper from the hit and the only way the bumper fit on correctly was when i removed it.

Is that a big deal?

 

something isnt right. Put the foam back and inspect or try readjusting things so that it fits properly.