| Well as far as i know all u can do is pretty much push the bumper in but even then u can have the molding look like shit and warp |
what if u buy the bumper shocks for 88-91 model??? Would u beable to do the plastic bumper change? how much do u think the total cost would be if u were to have it installed
You CAN do that, and you can do a plastic bumper change. You can probably do it yourself. In that process, the only thing hard to do is installing the rear bumper itself. The front bumper is pretty much a bolt on job, while the rear bumper takes a bit of fabbing and modification. http://www.r3vlimited.com/Tech/bumper1.htm
this is a good write-up on how to do the plastic bumper swap yourself.
I wouldn't know how much a body shop would charge to do it yourself, because i don't even know of any good body shops that can do that. But i'm guessing it's around the ballpark of 800+ dollars with the included items needed to perform the task.
If you find that you think that it is too much for u to do, there is still several other alternatives.
As you said, you can push in the bumpers yourself or you can buy the bumper shocks from the 88-91 models and have the bumpers pushed in without messing up your stock shocks. With that, you can add a racing dynamics rear valence. If you don't have a front valence, then buying an iS front valence will balance out the car very nicely.