i probably could have installed myself although not mechanically inclined but had a shop do them as was doing rotors & pads at same time. they also tapped them to the caliper just to make sure stayed on didn't really like at first but a little touch up paint solved that & now like the idea. mine never did rub on the rims, but i remember somewhere that certain models, i think '10's with a certain tsb done had an issue. but mine came with about an 1/8 spacer that i didn't need. you might do a search on here. anyway mark when he comes online knows more about that than i. i did them after i seen his. this is an addon you either like or don't. i wanted to do something with caliphers beside paint them or replace with willwoods & they are too many $$$. price sounds about right, mine where more as did non standard red w/ black. normal red is with gray, that's what mark has.