Swift Springs Upgrade for BC Racing Coilovers (Set of 2)

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Swift SpringsSKU: BC-SWIFT-2
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Sale price$190.00 Regular price$230.00
Ships direct from BC Racing North America


Do you already own BC Racing Coilovers and want to upgrade them to Swift Springs, or do you want to change your spring rates?

Swift Springs' innovative designs have made us a staple in the performance tuning world. Our products are the result of over 90 years of experience in industrial spring manufacturing. Our engineers have spent countless hours developing and re-developing our springs, in order to create a product that is light, durable, and compliant, while still maintaining linear spring rates.

Many enthusiasts will swap springs from brand to brand with the only noticeable difference being a stiffer or softer ride. But what if a spring could offer a noticeable increase in traction, smoother weight transfer, better ride quality, lower tire temperatures, and a more predictable feel? The engineers at Swift have taken that 'what if' and turned it into reality.

All Swift Springs are manufactured using (H5S.TW.) which is far superior to silicone chrome steel and allows us to wind our springs with less coils, resulting in reduced un-sprung weight and increased stroke 

To shop by spring size instead of vehicle, click here.


  • All sales are final on this product. Please ensure you are selecting the right specs when customizing your coilovers.
  • This is for one pair of two (2) springs.
  • It's highly recommended to ensure your struts are valved for the rates you are choosing if they change by 4k. Failure to properly pair your springs and struts can damage your coilovers, hinder performance, and reduce ride quality.

      In-Stock Products: 1-3 business days

      Products that are in-stock and do not require customization ship the same business day if ordered before 2pm ET. Orders placed after 2pm ET will ship the following business day. 

      Out of Stock: About 3-4 weeks

      If an item is out of stock, the average lead time is 3-4 weeks before shipping.

      Custom Builds: About 3-4 weeks

      Custom builds include any combination of the following options:

      • Custom spring rates
      • Extreme Low
      • Swift Springs
      • DS Series
      • ER Series
      • HM Series
      • RM Series
      • ZR Series

      Custom spring rates are available at no additional cost. Rates up to 20K are available in both BC Racing springs and Swift Springs. Rates ranging from 20K to 40K will require Swift Springs.

      Transit Time: 1-6 days

      All BC Racing Coilovers ship UPS Ground from BC Racing North America located in Oviedo, FL. The map below shows the average time it takes for the shipment to arrive at its destination.

      ⚠️ CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Questions & Answers

      Ask a Question
      • Are these goin to be lower the the originals cause I looking to lowered the rear a lil more

        You would need to order them for the Extreme Low but also order the Extreme Low struts. These are shipped by BC Racing based on the SKU of your coilovers so they are a predetermined height to fit the coilovers as they come.

      • Does this fit a 350z Godspeed coilover? If not where could I find a swift spring upgrade for godspeeds?

        To replace springs, you will need to measure the inner diameter. You will also need to know your desired spring length and the spring rate.

      • I have d2 coilovers on my 8th gen si, they’re too soft in the rears and I’m looking to go pretty stiff, do I just measure the inner diameter and overall length along w the spring rate I want and order like that?

        We have all of the Swift sizes available on our main website at www.springrates.com. That way you can select the proper size there.

      • What is the spring lenght?

        The spring length varies. It's determined based on what coilovers you have and the options you choose.

      • Does the swift spring fit on my d2 superlow in a 1998 honda crv

        You'll need to measure the inner diameter and provide that to us along with the spring height and spring rate you need.

      • Since it says that its two pair. So I would also need to purchase the ones for the rear?

        It's one pair, so a total of two springs.

      • Hello, I have BC Racing BR Coilovers on my 2007 WRX TR. I believe it came with an 8kg/6kg spring from the box. I would like a softer combo with 6k/4k for street (or even 6k/5k). Could you advise on a combo (street duty car daily driver) and could you be tell me which springs would fit my coilovers? Thanks Leo

        We generally don't recommend going with a softer spring rate because they're determined based on the weight of the vehicle. If you want a smoother ride, we recommend going with Swift Springs as they will ride smoother in comparison.

      • Which springs should I go with? Im looking for something to make me really low and super stiff. The coilovers I am currently using are the maxpeedingrod brand coilovers. Thank you.

        The best option is to go with a full set of replacement coilovers such as the BC Racing Extreme Low Coilovers to ensure the proper struts are matched with the springs. Going with a shorter/stiffer spring on struts that are too long and not valved for the rates will be detrimental to your ride quality and performance and will greatly shorten the lifespan of your coilovers.

      • Will these be the 5in springs ?

        You need to specify the BC Racing Coilovers you are using on your vehicle for us to send you the appropriate diameter and length.

      • I made a mistake getting these godspeed mono ss coilovers the springs to soft for me I like that stiff ride so I'm wondering if I can change the springs for stiffer springs

        We can sell you Swift Springs but the struts won't be valved to match. This will shorten the life of your struts and also cause poor ride quality. You'll need to provide us with the inner diameter of the springs, the spring length, and the rares you need. However, we recommend maybe selling the coilovers and purchasing a set that is valved to the spring rates you are looking for.

      • Will these fit my race lands 2003 Subaru Forester

        These are only for the BC Racing Coilovers.

      • I have a 2017 Toyota Camry se I just got the br bc coilovers installed but I want a smoother less bumpy and bouncy ride I was told to look into swift springs to upgrade my question is what spring rate should I be looking for because I’m clueless when it comes to that and I’d definitely would like to order it from you guys

        If you'd like a smoother ride, then definitely go with the Swift Springs. Your best option would be to go with the default spring rates for that vehicle.

      • Would this fit a 2009 Pontiac g8 gt, I have the bc coilovers but I’m looking for something stiffer on the back

        Unfortunately they will only work on the front for the Pontiac G8. The front uses a linear spring whereas the rear uses a conical shape spring so it cannot be changed to Swift.

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