bumpers

is there any difference between an SI bumper and DX bumber. I got a 91 hb dx and I wanna know if the SI bumper will fit on there...and what years 88-91 or 91 only...not really sure thats why i'm asking.

i know the 88-89 bumpers are different. As for DX and SI..i THINK they are the same..they should bolt right up.

same thing, but dx might be unpainted?