Racecomp Engineering Yellow Lowering Springs

Part #: RCO GR340
( 10 reviews )



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Brand: Racecomp Engineering
Adjustable: No
Drop Height Front: 0.6in / 0.4in (11-12)
Drop Height Front Metric: 15mm / 10mm (11-12)
Drop Height Rear: 0.6in / 0.4in (11-12)
Drop Height Rear Metric: 15mm / 10mm (11-12)
Includes Bump Stops: Yes
Spring Rate Front: 330lbs/in
Spring Rate Front Metric: 5.9Kg/mm
Spring Rate Rear: 335lbs/in
Spring Rate Rear Metric: 6Kg/mm
Mfgr. Warranty: Limited Lifetime Warranty
Return Policy:

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Subaru Impreza
WRX STI Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014

RaceComp’s classic “Yellow” high performance lowering springs are now available for the GR chassis Impreza STI! Following the release of their popular "Regular Guy" springs, RaceComp has produced a more aggressive lowering spring for the 08+ STI. These new springs lower the car approximately 15mm and include new replacement bumpstops to maintain as much travel as possible on the lowering sensitive GR Impreza chassis. Spring rates are an aggressive 330 lbs/in front and 335 lbs/in rear. With a stance to match the performance, these springs utilize the knowledge RaceComp has gained from years of GR chassis set-up experience to maximize handling, retain ride comfort, and improve the look of your Impreza. RCE’s goal was to help cure the crippling understeer that adds to lap times at the track and autocross course. Studying the design of the new GR suspension, a more aggressive performance spring has been produced that retains available bump travel, matches the OEM dampers, and works in conjunction with the new rear motion ratio. The result is a car that handles extremely well from corner entry to corner exit.

For the 2011-2012 Impreza STI, ride height is reduced 10mm instead of 15mm.

REVIEWS ( 10 )


Verified Purchase
Outstanding springs
Thenician 2 months ago
I love these springs. The car feels so much more connected to the road. I'm still on stock sway bars and shocks/struts and just these by themselves give a serious improvement to cornering with a very modest lowering. The only recommendation I have with these is you might have to upgrade you stock shocks at some point. Depending where you drive. There's a lot of rough roads by me and the stock tubes can't really handle the bounce back from these. So while they feel great when it's smooth, they are just a little bit springy over bumps and rough road.

Great product.
sblachh51198 6 months ago
Installed on 2011 STI with Bilsteint struts. Car is planted. Feels smoother over the road. The ride is overall improved alot over the stock suspension. Install is not too hard. It helps to have an impact gun to loosen bolts. RSD has outstanding customer service.

Firmer Ride, Less Bounce
Demonik 1 year ago
Got a set of used ones, for about 15k Miles. Fantastic springs. Must have. With load, doesn't scrape and give you confidence around corners. Yet to install sway bars and endlinks and I love these springs already. Fantastic!
Verified Purchase
My favorite
jimmy3shakes 1 year ago
I've always loved cars and motorcycles that handle as well as possible. On my American muscle cars I loved eibach springs with Eibach pro dampers. My new favorite set up for my Sti dd is Gtworx/bilstein & rce yellows! They are stiff but not so stiff that you don't enjoy your driving experience. Your car becomes more fun to push.... I tried swift and 1st but on stock struts so I can't give a review on them other than my stock struts gave up within 2 months of installing them. I ran the eibach pro kit springs on the gtworx/bilstein struts for 6 weeks and they really were quite good together other than a distracting little bounce that felt out out place. I didn't feel confident pressing hard in bumpy corners. (I doubt a passenger would notice). But this set up can't be out driven. It's solid and consistent and really begs to be pushed harder. Fyi normally when somethings really good I keep it to myself... So enjoy!
Verified Purchase
Great improvement over stock!
tlibolt82 2 years ago
I have a 2013 STi and installed the RCE Yellow springs with the GTWorx/Bilstein struts - so be aware I don't personally know how these perform with OEM STi struts. The drop is barely noticeable, and when combined with the GTWorx Struts the ride is substantially improved in all areas! My car looks a little more aggressive with the slightly lower stance. The ride feels firmer when pushed hard, but when driven lightly it still feels very comfortable, not harsh at all. The car definitely sticks to the pavement better over all surfaces, especially rough/uneven roads. Plus, my favorite part, it feels like it craves being pushed harder at the track and under-steer is almost non-existent! With the new springs/struts installed I managed to smash my old personal best lap time at my local track. I highly recommend these springs if you want to make your STi perform and look a little more aggressive but without compromising daily driver functionality. Plus, combined with the GTWorx struts, it's a great alternative for those that want a better suspension setup but aren't ready to commit several hundred extra for coil overs.


  • AnswerQ: Use on WRX  Dailoh 6 months ago

    I bought these STI springs for my WRX. I know it said the spring rate will not match the struts for the WRX, but if I was to install them with the Koni Yellow inserts, will it be an issue?

    • A: We cannot confirm fitment with these units on a WRX.

      Nick S. 6 months ago

  • AnswerQ: Spring rate compared to RCE Blacks.  Razor Sharp 9 months ago

    Would you say that the ride stiffness is similar to the black springs? I have blacks on my 08 sti right now and love the spring rate, just looking to go a bit lower. The spring rates don't appear to be that different.

    • A: These will be slightly stiffer than the Racecomp Black Springs and lower the vehicle and should suit your needs well.

      Nick S. 9 months ago

  • AnswerQ: rear ride height   13stisedan 1 year ago

    The question I have is it possible to add a rear spacer because I would prefer to leave the rear stock height UN touched and just bring down the front a tad. Would adding a spacer throw the suspension off? I want the yellows spring rate.

    • A: Rear shock spacers can be used and they should not negatively affect the handling.

      Zach G. 1 year ago

    • A: Zach is correct and we agree with him. It is ok to run spacers in the rear. -Larry

      Racecomp Engineering 1 year ago

  • AnswerQ: What Strut would pair well?  Cincy14STiHatch 2 years ago

    What strut would you recommend to give similar increase over stock that this spring gives? Thanks!

    • A: These are meant to be used with the OEM dampers and unfortunately we do not have any struts for the 08+ models available at this time.

      Nick S. 2 years ago

  • AnswerQ: compatible?  wrxFTWdey 2 years ago

    are these compatible with a 2011 wrx sedan? if not, how do the springs differ

    • A: Racecomp makes these springs specifically for the STI models and they are not confirmed for the WRX. They are meant to be matched in spring rates with the STI struts and may be oversprung for the WRX struts. It would be recommended to select WRX confirmed springs like the Regular Guy Racecomp units (RCO RG275BILS)

      Nick S. 2 years ago