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Whiteline Rear Subframe Positive Traction Kit
Subaru Models (inc. 2008-2014 WRX/STI)
Features & Product Details
RallySport Direct always carries a great variety of automotive performance suspension components brought to you by Whiteline.
Here, you are looking at the Whiteline Rear Subframe Positive Traction Kit. These are durable urethane bushings that will be direct replacements for the soft rubber units to remove any excessive rear subframe movement under hard lateral loads.
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REVIEWS & CUSTOMER MEDIA
These bushings are definitely something worth looking into especially if your plans are going to be tracking the car , or even autoX. Not much difference with NVH (vibration). Really makes the rear end planted with not much movement if at all. I had the Subframe and diff bushings done at the same time and certainly some of that rear end slop is gone. These bushings now have 8k on them and so far very much worth every penny.
the OEM bushings are clearly not meant to be removed. pressing them out is not an option because of the flange on the bottom side. Thus, the old fashion way of torch, saw and chisel is required. But, huge difference in handling.
These are well worth the time and effort to install. They make a big difference taking out the boat effect of shifting. The rear end stays solid in turns and on the straights. During the install, you will hate life... So don't attempt if you are a mediocre tech. I've done two of these and both have taken well over 4 hours.
We did these on a 09' WRX sedan and luckily we had access to a lift, transmission jack, and a torch. You do have to remove the entire rear subframe from the car, differential and all (there is no way around this). What worked for us because the subframe is too akward to fit in a press is we burned out the rubber from the oem bushings. Once the rubber was soft enough, we hammered out the center sleeves and then took a chisel to collapse and remove the outer metal sleeves of the oem bushing. The process took a full 4+ hours. If you are not comfortable removing the ENTIRE rear end of your car, do not attempt this. Luckily you can hang the brakes and suspension up so you don't have to bleed or re-adjust much of anything, but I do recommend an alignment afterwards. The results- HUGE improvement of acceleration and gear changes. The boat like motion when shifting of most Legacys, Outbacks, and WRXs is almost gone. Are the bushings worth the headache? Yes, but just be careful to not get in over your head. If a shop charges you less than 4 hours of labor to install these, you are getting a bargin...lol.
Great product! I would highly recommend getting these installed at a shop where they have access to the proper tools (machine press & rack). My subframe had to be removed to put them on, but it was worth the 2 hours of labor because it feels remarkably more planted during throttle applications through the corners. I also had the whiteline rear diff (front/rear) positive power kits installed at the same time so that may also have contributed to the more grippy feeling on the rear of the car...
QUESTIONS & ANSWERS
Q: Does this include a complete set? ShermNet3 years agoIn your description of this it says that it includes 2 bushing halfs and one pin. Is this correct?
1 people found the
following answer helpful
A: Yes this will be a complete set with 8 bushing halves (4 complete bushings for the 4 corners of the subframe) and 4 pins. I have corrected the description. Thanks!Rick C. @ RallySport Direct 3 years ago
- 1 of 1 people found the following answer helpful
Q: KDT907 and KDT902 niko4937 years agoSorry if this is a noob question, but is KDT902 a substitute for this in the form of inserts, or its something completely different? Thank you.
0 people found the
following answer helpful
A: Correct, KDT902 are inserts that support and stiffen the stock bushings. KDT907 replace the stock bushings entirely.Josh P. @ RallySport Direct 7 years ago
- 0 of 0 people found the following answer helpful