It firms up the rear end, leads to more precision during driving, reduces dynamic reflection, and removes an undamped spring from your suspension (the old one is a really bouncy rubber).
Like all of our newest generation suspension bushings this one has the following features:
- Shore 95A medical grade urethane (this means no heavy metals are used in the manufacture)
- Graphite impregnation for self lubrication
- Split design for easy install
- Stainless steel crush tube milled from solid stock
Fitment for this one is pretty crazy since Subaru used the same bushing for YEARS on the cars. Here's what you get:
- Impreza - 2007 and earlier
- Forester - 2008 and earlier
- Legacy - 1999 and earlier
- SVX - All (We have personally confirmed this)
The part itself is nice enough. The bushing and crush tubes were free of any noticeable defects. You can tell that the bushing material has some flex to it (it's not rock hard), but not much flex at all. I don't think it is possible to squeeze it out of shape with hands. One interesting thing I noticed is that the crush tubes feel light. I have no doubt they are stainless steel as advertised but they seem lighter than other metal parts of similar size. I'm sure TIC knows what they're doing and also the load will be distributed across the mounting bolt. I have no doubts that it's strong enough.
Installation was also easy enough. I did have my car apart for installation of other bushings as well so the hubs and OEM bushings were easily accessible to remove the old bushings. After minimal use of sandpaper to remove some old rubber/grease, I simply pressed the TIC bushing halves in by hand, which is a very nice change from fighting other bushings into lateral links. If your hub is rusty you would need to do more clean-up. For the crush tubes I used a rubber hammer to get them started then a big C clamp to press it the rest of the way. Easy enough.
I still don't have the car together with all the other bushings so I don't have any driving impressions and I probably won't be able to tell which bushings caused which part of any feel/NVH.