Roush Coilover Suspension Kit Triple Adjustable V6/EcoBoost/GT 2015-2021



  • Adjustable Height
  • Red Powder-Coated Springs
  • Direct Fit
  • Improves Handling
MSRP $3,119.00
You save $119.01

Roush Triple Adjustable Coilover Suspension Kit for 2015, 2016, 2017, 2018, 2019, 2020 and 2021 V6, EcoBoost and GT Mustangs.

If you're looking for the best race-inspired handling for your newer 2015-2020 Mustang, than this premium Roush Triple Adjustable Coilover Suspension Kit (421840) might be exactly what you need! Hurry up and order yours today from CJ Pony Parts!

Features and Benefits:
- Direct-fit upgrade for most 2015-2020 Mustangs
- Complete kit to overall and upgrade your pony's suspension system
- Provides a dramatic improvement in overall handling
- Additional improvements in damping and rebound with provided tools
- Vehicle will be stiffer and more stable through turns
- Rated to produce over 1.0g lateral skid pad acceleration
- Race-inspired triple adjustable coilovers have proven track improvement
- Helps maintain a high level of overall ride quality on the street while also boosting performance on the track

Roush designed this complete upgrade kit to help provide your favorite pony with improved handling and overall better performance on both the track and street! You'll receive absolutely everything you'll need, like direct-fit upgraded adjustable coilovers, stainless steel shocks and premium adjustable spring mounts, all to help provide a superior ride quality in your Mustang! Roush developed this kit so that every piece is constructed from premium-quality materials and so they'll be direct-fit bolt-on upgrades to your current suspension pieces. You'll love the improved cornering and stability this kit provides, so what are you waiting for? Grab your Roush performance suspension package from CJ's now!

- Front stainless steel adjustable coilovers with red powder-coated springs
- Rear adjustable stainless steel shock assemblies
- Rear adjustable spring mounts with red powder-coated springs
- Front and rear height adjustment spanners

- Approximate 1.5” Drop in Front (As Delivered)
- Approximate 1.0” Drop in Rear (As Delivered)
- Maximum 1.5” Drop in Front (Without Modification)
- Maximum 2.0” Drop in Rear (Without Modification)

*To adjust the rear drop, make sure to loosen the set screw to turn the spring adjuster. You will be able to lower the rear a maximum of 2.0” from stock ride height.
*All measurements are measured from the wheel center cap to the fender lip.

Please Note: This kit will NOT fit vehicles that are equipped with the factory MagneRide suspension.

Tech Tip: Dropping the front more than 1.5” from stock ride height is possible with modification. Roush states that cutting the locking rings off will allow you to lower the car more than 1.5” in the front.

Vehicle Fitment Note: This suspension kit will fit 2015-2017 V6 Mustangs, 2015-2021 EcoBoost Mustangs, 2015-2017 GT Mustangs and 2018-2021 GT Mustangs that do NOT have a MangeRide suspension system.

How well do you want your Mustang to look and perform? With any of the parts from Roush Performance, you can give it a major performance overhaul and add some visual styling that will make your Mustang stand out from the crowd. Browse around and order your next performance upgrade kit from CJ's today!

California Residents: Proposition 65 Warning

Installation Difficulty


Intermediate skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

Only registered users can ask/answer questions. Please sign in or create an account.
Write Your Own Review
Only registered users can write reviews. Please sign in or create an account.