Along with Project +Lightness I have the wants for handles to tackle the many curvy roads around East Tennessee. My current suspension setup is RCE Yellow springs, 05 STi struts (modified for 5×100 use) with Whiteline Front Top Hats. Everything else is stock. Here are my current plans for a responsive cornering beast mode.
2004 STi Steering Rack & Pinion (15:1)
The stock 2003 WRX rack is 16:1 and it shows once you get into the tight switchbacks. All my Subies have had 15:1 racks, including my wife’s 2013 Impreza Sport. Driving her car makes my WRX feel rather, appliancy. The 2004 STi rack bolts right in.
Mooresport Solid Steering Rack Bushing Kit
I just stumbled across these last night on RSD. I was leaning towards the Super Pro steering rack bushings until I saw these. I loved having solid steering rack bushings on my Fox chassis Mustangs/TBirds back in the day.
2004-2007 STi Steering Joint/Linkage (PN# 34170FE050)
The stock WRX piece has a rubber piece for NVH reasons. IDGAF about NVH. Give me response!
2004-2006 STi Front Control Arms
The GD chassis STi control arms are aluminum (about a pound or so lighter – 7.10lbs vs 8.90lbs) and with the exception of the 07s – add some extra castor. Plus the bushings are a bit harder for improved response.
Super Pro Roll Center Kit
I may or may not need this just yet. Didn’t seem to change much on my STi but they did help my 2009 WRX when it was on coilovers. I had some pretty good roll steer and the RCK fixed it.
Super Pro/Beatrush Anti-Lift Kit
On the fence about this. Not sure if any ALK will clear the front subframe that I’m looking at.
Front Fender Braces
I really liked my GTSpec Fender Braces on my 2009 WRX. However GTSpec seems to be done selling GD Subie parts. I may just grab some TiC braces and be done with it.
2005-2007 STi Rear Lateral Links
I actually have half a set of these already. Just need to grab the other half and bolt them up. Ideally I would like a set of FXT STi links
2004-2007 STi Rear Sway Bar (20mm)
Same as my current sway bar however I the STi lateral links have a different sway bar mounting point and thus require a different rear swaybar. 😦
Cusco 22mm Sway Bars (Front/Rear)
2mm bigger than stock, should be a good upgrade without restricting suspension travel.
IDK, probably going to get the Cuscos.
Cusco Rear Lower Subframe Bar
I bought this brace more or less to run a diffuser on my 2005 STi. What I didn’t expect was tighter handling rear end. My STi was a very tail happy car and this bar helped it become more neutral. Can’t wait to run it on my WRX.
Rear brace that connects the rear strut towers to the rear bulkhead.
That’s it for now. I’ll refine this list as a continue my research.