Whiteline Rear Positive Traction Kit

Part #: WHI KDT910
MSRP: $69.80
( 16 reviews )


   In Stock: Ships the Same Day
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This product is covered by our
RallySport Guarantee
No questions asked 30 day return policy


Brand: Whiteline
Material: Polyurethane
Mfgr. Warranty: 1 Year
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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Subaru Impreza
WRX STI Limited Sedan 2011,2012,2013,2014WRX STI Limited Hatchback 2011,2012,2013,2014WRX STI Sedan 2011,2012,2013,2014WRX STI Hatchback 2011,2012,2013,2014WRX Limited Sedan 2011,2012,2013,2014WRX Limited Hatchback 2011,2012,2013,2014WRX Sedan 2011,2012,2013,2014WRX Hatchback 2011,2012,2013,2014WRX Premium Sedan 2011,2012,2013,2014WRX Premium Hatchback 2011,2012,2013,2014

Due to the heavily void rear suspension sub frame, large cross member misalignment and movement can be noticed and observed during hard constant cornering giving a sensation of the rear end squirming around. Having the large voiding in the rear bushing also allows the rear cradle to change the suspension alignment dynamically allowing toe angle changes to the rear suspension during cornering. By fitting inserts into the voiding dramatically reduces the effect of this and allows a more positive feel from the rear end during cornering.

REVIEWS ( 16 )



Great upgrade
subarman 5 months ago
Install was fairly easy, results are immediately felt. Don't forget to get an alignment afterwards, since you did disconnect your subframe.

Solid feel for good price
Dialos13 5 months ago
Install was quick and easy. Feel was noticeable, but not too stiff. I think it was a great investment.

mervincris 7 months ago
The rear is more predictable. Noise and vibration from the road has increased.

Great product on 2014 wrx
pkfbdtr1 12 months ago
Took me approx 3 hours to install. Slight increase in NVH. I like it.
Verified Purchase
Whiteline rear diff, positive track, and steering bushings
delaisy169625 1 year ago
So I purchases all of these and put then all in at the same time. Awesome difference! Car feels tight and predictable with great road feel. No longer slushy in the corners. Easy install and just what I was looking for. You won't be disappointed.


  • AnswerQ: Will this fit the 2015 STI?  Tyler Nelson 8 months ago

    Will this fit the 2015 STI?

    • A: This product is not confirmed for the 2015 models.

      Nick S. 8 months ago

  • AnswerQ: torque spec  duder 8 months ago


    • A: Whiteline doesn't right any specs on these for us and from what I have been told tight is tight. I would go a turn or so past hand tight and that would be sufficient enough.

      Tommy M. 8 months ago

    • A: Our installation instructions are generally designed to be used with the factory shop manual. The torque specs for this kit would need to be attained from the factory shop manual or a Subaru Dealer.

      Jonathan @ Whiteline 8 months ago

  • AnswerQ: black or yellow  paterick 9 months ago

    Does this KDT910 kit also come in Yellow, or black only?

    • A: Hello Paterick, Since our Fade To Black promotion, all of our bushings are being produced in Black only. The material itself has gone unchanged, it is only a cosmetic change that was made. If you have any other questions, feel free to contact us directly at support@Whitelineus.com.

      Jonathan @ Whiteline 9 months ago

    • A: All Whiteline bushings are now offered only in Black.

      Brady R. 9 months ago

  • AnswerQ: 2011 WRX???  iglesiasm1933017 3 years ago

    So it is confirmed this will work on 2011 WRX? I guess Whiteline had to make a new one for 2011-2012 since the bushings are different than 08-09...

    • A: These bushings are confirmed to fit the 2011 and 2012 WRX & STI.

      Zach G. 3 years ago

  • AnswerQ: Install?  bdubclub 3 years ago

    How difficult is this piece to install?

    • A: You will need to lower the rear sub frame to install these inserts and that can be dangerous if you do not have the proper equipment. The install is fairly simple once you lower the rear sub frame.

      Zach G. 3 years ago