Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8) 4X923R
Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8) 4X923R
Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8) 4X923R
Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8) 4X923R
Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8) 4X923R
Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8) 4X923R
Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8) 4X923R

Swift Springs

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SKU: 4X923R

Swift Spec-R Lowering Springs for 2009-2016 Audi S4 (B8)

Sale price$357.75Regular price $477.00
5.0
Rated 5.0 out of 5 stars
6 Reviews
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Fitment Notes

All fitment information on our website is provided by the manufacturer. It is the customer's responsibility to thoroughly read the product description and confirm fitment before placing an order and proceeding with installation.

Unless specified otherwise, all suspension products are designed for 2WD vehicles only. Any notes or descriptions related to electronic damping systems (EDC, DDS, etc.) apply strictly to vehicle fitment. Aftermarket coilovers are not compatible with OEM electronic damping control systems unless explicitly stated.

*Product images may not represent the actual SKU.

Handling Time

All handling times are estimates and may change at any time. If the item is out of stock, we’ll promptly inform you of the estimated wait time and suggest similar in-stock alternatives if you prefer to change the order.

  • In stock: 1 business day
  • Out of stock: TBD

30-Day Returns

Not quite right? No problem — we offer hassle-free 30-day returns on eligible items. A few exclusions apply.

More Information

1-Year Manufacturer Warranty

Swift Springs offers a limited 1-year warranty on their metric coilover springs against defects in materials and workmanship. This warranty applies to springs that are properly installed and used under normal conditions. Swift Springs will repair or replace defective springs at their discretion.

Product Details

The Swift Spec-R Lowering Springs for the 2009-2016 Audi S4 (B8) close the wheel gap on your B8 S4 and deliver the handling precision that Audi's supercharged V6 deserves. These B8 S4 lowering springs drop the ride height approximately 0.9" in front and 0.6" in the rear with spring rates of 7.2 Kg/mm front and 3.5 Kg/mm rear, optimized for the S4's sport differential and adaptive damping. Built in Japan using Swift's proprietary H5S.TW material, these S4 springs provide a noticeably flatter cornering attitude and improved turn-in response while maintaining enough compliance for the daily commute on imperfect roads.

Swift Spec-R Technology

  • Proprietary H5S.TW high-tensile spring steel, manufactured in Japan
  • Optimized ride height to maximize suspension geometry at lowered position
  • Increased spring rates tuned to usable shock stroke for balanced performance
  • Fewer coils reduce unsprung mass and completely eliminate coil bind
  • Quicker transient response for improved traction and road feedback
  • Vehicle-specific bump rubber engineering to prevent bottoming out

Features

  • Track-proven in HPDE and SCCA competition
  • Lowered center of gravity for improved cornering grip
  • Reduced body roll and sharper handling response
  • Comfortable enough for daily driving
  • Compatible with OEM and aftermarket shocks/struts
  • Direct bolt-on installation with no modifications required
Specifications
Part Number 4X923R
Part Name Swift Spec-R Lowering Springs
Vehicle 2009-2016 Audi S4
Chassis Code B8
Spring Rate - Front 7.2 Kg/mm
Spring Rate - Rear 3.5 Kg/mm
Approximate Drop - Front 0.9"
Approximate Drop - Rear 0.6"
Vehicle Fitment
  • 2009 Audi S4 (B8)
  • 2010 Audi S4 (B8)
  • 2011 Audi S4 (B8)
  • 2012 Audi S4 (B8)
  • 2013 Audi S4 (B8)
  • 2014 Audi S4 (B8)
  • 2015 Audi S4 (B8)
  • 2016 Audi S4 (B8)

Customer Reviews

5.0
Rated 5.0 out of 5 stars
Based on 6 reviews
100%would recommend these products
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6 reviews
  • TT
    Toshiaki T.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2021+ Acura TLX Type S
    Rated 5 out of 5 stars
    Great!

    Loved the amount the car dropped (not too much), feels OEM, easy to install, happy with the springs and the service from Springrates.

    Was this helpful?
  • HM
    Harvey M.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2021+ Acura TLX Type S
    Rated 5 out of 5 stars
    Perfect ride!

    After adding a new set of tires and wheels with a bigger offset to push the wheels out I needed a set of lowering springs to set them off and you had just what I needed. Got the installed and an alignment done and now every time I get in the car it feels like a new car to me. Improved not only the looks and handling, but also the ride. Firm, but not harsh and the electronic damping system on my 2023 Acura TLX Type S still works perfectly. Highly recommend!

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  • JG
    Joshua G.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2013-2018 Ford Focus ST (MK3)
    Rated 5 out of 5 stars
    Perfect

    Good amount of drop one inch just what i was looking for. Nice ride quality for a daily car but way improved handling i love these springs ❤️

    Was this helpful?
  • KH
    Khoa H.
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2009-2020 Nissan 370Z (Z34)
    Rated 5 out of 5 stars
    370 swift springs and koni shocks

    Loved it, Springrates is very legit and shipped mine out quickly, got it in a couple days!

    Was this helpful?
  • RB
    Ryan B.
    Flag of United States
    Verified Buyer
    Reviewing
    Swift Spec-R Lowering Springs for 2020+ Toyota Supra (A90)
    Rated 5 out of 5 stars
    Spec-R Springs A90 Supra

    Delivery was super fast. Springs ride quality is great and the drop is perfect on the Supra. Couldn’t be happier with my purchase!

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