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RTR Tactical Performance Lowering Springs (15-17 GT Fastback, EcoBoost)

Market Price $279.99 You Save 14% ($40.00)
Our Price

$239.99

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  • Item 393987
  • MPN# 393987

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Features, Videos & Details

  • Improves Handling Performance
  • Sleek Muscular Stance
  • Lowers Center of Gravity
  • Progressive Spring Rate
  • Gray Powder Coated Finish
  • Drop: Front - 1.1” Rear - 0.8”
  • Clears Stock and Aftermarket Wheels & Tires
  • Fits 2015-2017 GT Fastbacks and EcoBoosts

Review & Installation Video

Improves Handling Performance. Are you a S550 or EcoBoost Mustang owner that is looking for a great ride on the street and a significant increase in performance when putting your Pony through its paces? If so, you need to upgrade to a set of RTR Tactical Performance Lowering Springs. RTR Springs not only lower your Mustang, but they also feature proprietary street tested and track proven progressive spring rates for performance handling. These Springs were engineered to work with both base and performance pack dampers. However, in order to experience the maximum performance these Springs can offer, they should be installed along with RTR's matching Tactical Performance Adjustable Dampers and Sway Bars.

Sleek Muscle Car Stance. Not only does a set of RTR Tactical Performance Lowering Springs improve the handling performance of your Mustang, but they also improve its overall appearance. By lowering the ride height 1.1" up front and 0.8" in the rear these RTR Performance Springs will eliminate that huge tire to fender gap, for a sleek muscle car stance without the rear sag that other kits have when they lower the front and rear the same amount.

Clears Stock and Aftermarket Wheels & Tires. These lowering springs were engineered to be compatible with your factory size wheels and tires, as well as AmericanMuscle's pre-configured wheel and tire combo kits (specific to your generation), to assure proper clearance with no rubbing issues.

Application. This set of four RTR Tactical Performance Lowering Springs were developed to create the perfect drop in regards to both appearance and performance and have been specifically designed for use on 2015-2017 Fastback GT and EcoBoost Mustangs.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (2) Front Springs
  • (2) Rear Springs
  • (2) Front Dust Boots
  • (2) Front Bump Stops
  • (2) Rear Bump Stops
Installation Info
Tech Specs
Springs Specifications
Spring Rate: Front: - lb/in.
Rear: - lb/in.
Usage: Street
Year: 2015-2017 Model: GT Fastbacks
Progressive or Standard: Progressive Estimated Drop: 1.1" Front / 0.8" Rear
Will it fit my Mustang?
  • GT - 15, 16, 17
  • EcoBoost - 15, 16, 17

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
BETTER GRIP WITHOUT THE FRONT END LIFT

These springs are as promised!! Improved handling while keeping a comfortable ride still. Great stance with a slight rake, which still gives good clearance. Stopped the huge front nose lift on hard ...

Read More
Helpful (3)

4/5
Ready to rock the streets

Just waiting for the rtr coil overs but until then these springs fit and feel right. California streets are harsh and these springs help your mustang stay on the ground and support that body roll that ...

Read More
Helpful (3)

Overall Rating 4.8 out of 5 stars
Read All 4 Reviews

Customer Photos (4) Submit Your Photo

View All 4 Photos

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3 Questions / 3 Answers

Ask a Question

Good Day, Is it possible to have a video uploaded? Want to see how the drop looks on a S550 GT, and the installation. Also, anymore customer pics?

DarrenC

  • Hey Darren, As for the video, the video teams rolls videos in daily and they try to get as many products as they can so this may become a video shortly and as for the customer photos we apply them as soon as we get them so what we have is all we've received so far.

    Cobra_Machine04

Helpful (0)

What are the spring rates for these (low and high, given that they're progressive)?

BmacIL

  • Spring rates always vary depending on the weight of the vehicle so spring rates are measured in averages. The average spring rate for the front springs are around 200-314 lb/in. and the rear springs are around 800-914 lb/in.

    KevinD92

Helpful (0)

Why does this only fit the GT when most of the other lowering springs can also fit the ecoboost? I currently have the 20x9.5/10.5 RTR rims and thought these would be a great addition.

Twent11

  • These RTR Tactical Performance Lowering Springs are manufactured slightly different. Additionally, the spring rates for these springs are specifically designed for a GT. Installing these springs on a different model will not perform as designed.

    AMJEFF

Helpful (0)

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Customer Reviews (4) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Afternoon

  • Handling Improvement 5 5
  • Ride Quality 5 5
  • Appearance 5 5
  • Bang For Your Buck 5 5



  • 5/5

    Installation Time: Afternoon

    June 22, 2017

    BETTER GRIP WITHOUT THE FRONT END LIFT

    These springs are as promised!! Improved handling while keeping a comfortable ride still. Great stance with a slight rake, which still gives good clearance. Stopped the huge front nose lift on hard accelerations, with causes the rear end to squat harder. I paired these RTR springs with KONI struts and shocks. Hope this info helps. I was going for performance more then a look.

    Memphis

    Year: 2016 Submodel: GT

    Helpful (3)

  • 4/5

    Installation Time: Afternoon

    November 27, 2016

    Ready to rock the streets

    Just waiting for the rtr coil overs but until then these springs fit and feel right. California streets are harsh and these springs help your mustang stay on the ground and support that body roll that everyone hates

    William

    Year: 2016 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Afternoon

    April 07, 2017

    Lowered just enough for daily driving

    A clean drop that you won't be disappointed.. Just got the Rtr wheels with them and they look right on our cars.. lowered just perfect.

    Rath

    Year: 2016 Submodel: GT

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    October 17, 2017

    Perfect fit and look

    These Springs look great. I have 265/35/20 tires with 1 inch spacers in all 4 corners. The Springs complimented my tires and spacers perfectly. I have no issues with rubbing or figment. The Springs ride very close to stock, they are a tiny bit stiffer during regular driving. But when you go into a corner they noticeably reduce body roll and keep your car planted. I love going on windy roads with these Springs, they make the car handle like a sports car. The spring install was pretty easy since there is a video posted on the product page that walks you through the install. The install took me about 6 hours because I was having difficulties getting the spring to line up properly with the spring compressor I was using. Rear Springs were very easy to install and probably took about an hour and a half.

    Bruno3112

    Year: 2016 Submodel: GT

    Helpful (0)

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