Just installed front and rear upper strut ars on the Si today and must say they are a excellent mod. These were even the ebay specials made by Bomz I would like to see the difference between these and lets say DC. Not as mant rattles, noticable stiffer chassis especially when going over manholes and such. Also less flex when the car is jacked up. I think I am going to get the lower set now. Big thumbs up. Only problem I had was getting it to fit right around the front fuse box under the hood and slight trimming of the rear panels.