2OP: Ignore that post, as you cannot use STI bar on you Forester (1999). The only OEM bars that will fit rear are from 02-03 WRX sedan (20mm) or wagon (17mm). Unless you know what you're doing and/or set to send quite a bit of time and money, go with the latter - it provides a good balanced handling that even an "average" driver should be able to... well, handle.Buy, beg or steal to get an STi rear bar. I put one on my '05 XT about a year ago & I cannot believe how much better it is. No change in harshness, but every turn is more crisp.