Its a pretty easy job to do, it is just 2 bolts that are torqued up pretty tight. If you look through some of the sway bar threads (maybe the Whiteline GB) I outlined the steps involved. To the original poster. I found the front strut's effect was very limited, gave a little more front end traction due to reducing the axle tramping a little. The rear strut made a bigger difference since the rear of the car is a bit soft. But if your after a mod that will actually improve lap times/mid corner speeds, then the rear anti roll bar is the better buy. If you own a Sportivo and are on a budget do a swap for a 1zz rear antiroll bar, it is 21mm vs Whitelines 22mm and 23mm for TRD. You'll be able to pick up the standard rolla anti roll bar for cheap at the wreckers, or free if your grandma owns a rolla. But if you have a 1zz rolla just grab a Whiteline anti roll bar since it is a lot cheaper than a TRD or Cusco one. (note: anti roll bar = sway bar) thank you. my one is ZzE123 '03-'04 version, I dunt know it is worth or not. :) Regards