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KONI STR.T Shock, Strut and Eibach Pro-Kit Lowering Spring Kit (11-14 GT, V6)

Item 390837
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$703.08 (kit)

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      Video Review & Installation

      Hey, guys, Stephanie with, here with the review and install of this handling pack that pairs KONI's STR.T Shocks and Struts with Eibach's Pro-Kit Lowering Springs for 2011 to '14 GTs, V6s, and Boss Mustangs.In this video, we're gonna talk about a few different topics when it come to this handling kit. We're gonna talk about the performance and handling benefits of the kit, and, of course, we'll cover the install. I'll go over the install in more detail later on, but I can tell you right now that the install for this kit is easy and straightforward, but it is a little bit of work. So I'm gonna call it a two out of three wrenches in the difficulty meter. The KONI STR.T Shock and Strut, and Eibach Pro-Kit handling package is going to be for those of you out there that are looking for a handling package that'll give you an entry level upgrade with non-adjustable shocks and struts and a set of progressive springs that'll drop the car up to an inch in the front and one and half inches in the rear. This kit is perfect for those daily drivers that are performance-minded and want a little bit more from their handling.For guys who are looking for more of an upgrade or to upgrade maybe some other handling components, there are some other kits that you can check out that will give you a little bit more depending on what you're looking for here. We do have a couple of things to talk about here since we are looking at a big kit, but the first thing that I wanted to talk about is the KONI STR.T Shocks and Struts. These are considered the entry level option, and I mean entry level in both price and performance. These are KONI Orange, which is one step below the KONI Sports or the KONI Yellows. Even though this is entry level kit, you are getting a bump in performance over your stock components. Now, while these are performance-oriented, you aren't getting the most performance-based kit with these here. These are non-adjustable as opposed to the adjustable options that you have. That means that they have a fixed rate of dampening, and these have the standard twin-tube gas-pressure design and steel body. Well, like I said, these are still an upgrade over the factory shocks and struts.If we move on to the Eibach springs, these are the Pro-Kit springs, and they are a progressive spring, which is gonna make them a good option for the street cars that are out there. The springs do offer a range of drop depending on your exact model. If you have a GT, no matter if it's a coupe or convertible, you're looking at a drop of one inch in the front and one and half inches in the rear. The V6s can expect 0.8 in the front and 1.2 in the rear, and the Boss Mustangs can expect 0.6 in the front and one inch in the rear. I will say that it's normal to have a settling period with lowering springs. So if the initial drop is less than what you'd expected to be, just know that these springs will settle a bit with some time, and the car will drop a little bit lower.The springs, and shocks, and struts work hand in hand together. And, normally, if you're upgrading one, you are upgrading the other. So having a kit like this one here, with two well-known brand names, is always a plus. And any quick research on the forms will tell you that this kit is a popular kit and that these things really do work well together. If you wanna take things a step further, you can always upgrade your strut mounts, and you'll have a car that feels totally different. As far as price, you're looking at spending under $750 for this kit. You do save a little bit by purchasing these together in a kit, but you can always buy the parts separately as well if you don't wanna spend everything all at once. And this is price lower than the kit with the adjustable shocks and struts, but keep in mind that this is your base upgrade. There are a ton of different handling kits that offer different components depending on what you're looking for. So if you need something more than

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Complete Suspension Kit
      • Improves Handling Performance
      • Aggressive Muscular Stance
      • Front Drop Up to 1"; Rear Drop Up to 1.5"
      • Progressive Spring Rate
      • Non-Adjustable Shocks and Struts
      • Twin-Tube Gas Pressure Design
      • Does Not Include Bushings
      • Fits 2011-2014 GT, V6, and BOSS Mustangs


      Improved Performance. Give your S197 Mustang a suspension upgrade and make your next drive exhilarating. Tighter steering, sportier handling and a more aggressive appearance are all yours with the KONI STR.T & Eibach Pro-Kit. The set includes KONI STR.T Street Front Struts and Rear Shocks as well as progressive rate Eibach Lowering Springs.

      Full Handling Kit. KONI's STR.T & Eibach Pro-Kit is the perfect starting point for the budget-conscious driving enthusiast. The entry-level STR.T Series Shocks and Struts from KONI offer the superb engineering and workmanship that KONI is known for, but in a design that makes for a wallet-friendly price point. The Pro-Kit Lowering Springs by Eibach provide a nice drop that improves overall stance without the harsh ride some other springs provide. Bundled together, the combo is a great value for daily drivers and performance minded folks alike. The STR.T Shocks will require bushings which are sold separately.

      Quality Construction. Complete with a gas pressurized twin-tube design, the KONI STR.T Shocks and Struts feature a durable orange finish and a larger diameter piston for optimum street performance. These non-adjustable dampers are great stock upgrades and also perfectly complement the included Pro-Kit Lowering Springs. The progressive rate springs provide a comfortable ride while lowering your center of gravity, offering better handling in curves and a reduction in nose-drive under hard braking situations.

      Installation Tips. This Handling Package installs directly in place of your stock components and comes with everything you'll need, including illustrated instructions. A full 4-wheel alignment should be completed after installation. The initial drop may appear be less than expected, but springs will settle farther given a bit of time. Expected drops vary by model and body style:
      • Lowers 2011-2014 GT Coupe: Front - 1.0", Rear - 1.5" 
      • Lowers 2011-2014 GT Convertible: Front - 1.0", Rear - 1.5" 
      • Lowers 2012-2013 BOSS Coupe: Front - 0.6", Rear - 1.0" 
      • Lowers 2011-2014 V6 Coupe: Front - 0.8", Rear - 1.2" 
      • Lowers 2011-2014 V6 Convertible: Front - 0.8", Rear - 1.2"
      Application. This STR.T Shock, Strut & Eibach Pro-Kit Lowering Spring Kit is specifically designed to work with all 2011-2014 GT, V6 and BOSS 302 Mustangs.

      Fitment: 2011 2012 2013 2014 Details

      KONI 1125 1092

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) STR.T Front Struts
      • (2) STR.T Rear Shocks
      • (4) Eibach Pro-Kit Lowering Springs

      Tech Specs

      Lowering Spring Specifications
      Spring Rate:Front: NA lb/in.
      Rear: NA lb/in.
      Year:2011-2014 GT, V6, BOSSModel:Coupe & Convertible
      Progressive or Standard:ProgressiveEstimated Drop:1.0" F / 1.5" R
      0.8" F / 1.2" R
      0.6" F / 1.0" R

      Customer Reviews (34)

        Questions & Answers

        10 More Questions

        Will It Fit My Mustang

        • Boss 302 - 12, 13
        • GT - 11, 12, 13, 14
        • V6 - 11, 12, 13, 14

        Not Compatible with GT500

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