I put the front 36mm bar on about a week and a half ago and made a big differance but I still noticed I had alot of sway in the rear so I ordered the ATR 1 3/8". I got the ATR a few days ago and put it on the next day. I found that the bigger bars really make the car feel tighter and stay more flat in the corners. The install of the front went very smooth. The end links bolted right up then I used the rear bolt holes to hold the bar up so I could drill and tap new holes for the front bolts. Total time about an hour in the driveway. The rear bar, BIG is not the word for it. The install on it went great but I did have problems getting the old bolts out and I had to use a torch around a leaky gas tank. After the bolts were out the only problem with getting the new bar in was its kind of heavy when laying on your back under the car but it talk it into going in. Total time for the rear was about an hour but like I said I had problems getting the bolts out. All and all I would subjust that anyone do this upgrade I see it as a worth while investment.