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KONI STR.T Rear Shock (05-14 All)

Market Price $91.99 You Save 27% ($24.71)
Our Price

$67.28 (each)

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  • Item 37801
  • MPN# 8250-1008

In Stock Ships same business day. Choose options to add to cart

Features, Videos & Details

  • Improves Handling Performance
  • Twin-Tube Gas Pressure Design
  • Ideal Stock/Upgrade Replacement
  • Non-Adjustable Damper
  • Orange Finish
  • (1) Rear Shock - Sold Individually
  • Fits All 2005 to 2014 Mustangs

Review & Installation Video

Improves Handling Performance. Upgrade the suspension of your S197 Mustang with Koni STR.T Street Rear shocks for improved handling and performance. STR.T Shocks are Koni's entry level performance line designed to be direct fit replacements for your factory shocks and are compatible with both stock and aftermarket springs.

Quaility Construction. Non-adjustable, this Koni STR.T Street Series rear shock features a gas pressurized twin-tube design with a larger-diameter piston for optimum street performance. This shock is completed in a durable orange finish with the world-famous KONI logo.

Application. This Koni STR.T Street Rear Shock is designed for use on the 2005 to 2014 Ford Mustangs, including the V6, GT, Bullitt and Shelby GT500 models. Sold individually.

Note: Coupon codes cannot be applied to this product.

Fitment: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

What's in the Box
  • (1) Rear Shock
Installation Info
Tech Specs
Placement: Rear Adjustable: No
Year: 2005-2014 Model: V6, GT, Bullitt, GT500
Manufacture: Koni Material: Steel
Will it fit my Mustang?
  • Bullitt - 08, 09
  • V6 - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • GT - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
  • Boss 302 - 12, 13

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
Great shocks

I bought the shocks and struts and had them installed my stock Ford shocks were well worn out and made for a very hash ride at 80 k miles . Originally I was going to get the adjustable Koni's but since ...

Read More
Helpful (3)

5/5
Koni STR Rear shocks

Installed these on my used '06 GT. Installation was a breeze. It took about an hour with basic hand tools and jack. I just wish the manufacture supplied hardware. I installed a set of SR springs a couple ...

Read More
Helpful (3)

Overall Rating 4.7 out of 5 stars
Read All 100+ Reviews

Customer Photos (28) Submit Your Photo

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9 Questions / 7 Answers

Ask a Question

Hello I have a set shock absorbers Koni STR.T front and rear with 1.5" BMR coil springs. But now I would to replace with coil springs stock, because where I live there are so many big and small bumps on the roads to reduce speed ! what ruin the lower part of the body. They can be assembled with coil springs stock. Thank you

Remix63

  • Hello! The KONI STR.T Rear Shock will work with factory springs.

    VincentV

Helpful (1)

2012 GT with leaking rear shocks. Is it okay to just replace rear shocks while keeping everything else stock?

JeffreyT

  • Yes, you can install these Koni shocks while keeping everything else factory. We would recommend the KONI STR.T Front Struts, item 100679 for a complete installation, however, they are not required. http://www.americanmuscle.com/koni-front-strut-1114.html

    AMJEFF

Helpful (0)

I have SR Lowering Springs already, so, if I bought these shocks with the front Koni struts, will I need to buy any other parts to to install them? Or will I be able to install them with just these parts?

Ethan

  • The KONI STR.T Rear Shock and the KONI Front Struts will install without any additional components, and it will be a direct fit with those springs.

    AMJEFF

Helpful (0)

Are these softer than stock?

Joe

  • No, they are stiffer than stock thus keeping the rear end tighter and preventing rear end bounce.

    ricco333

Helpful (0)

Will these stop the bounciness caused by lowering springs. I am lowered 2 inches in the back. I am on a budget so i cant do the adjustable ones now.

piezan76

  • The KONI STR.T Rear Shock will help reduce the bounce that is created from the installation of lowering springs. Depending on the severity of the bounce caused by the specific spring, results will vary.

    AMJEFF

Helpful (0)

do they include hardware? do they include hardware ? and also would i keep my stock ride quality with this shocks?

Luis281080

  • You have to use the stock part that's unscrewed from the top of stock shocks like the screw and rubber piece ...... But other than that yes it keeps the same stock like ride quality if not better ! On mine it's better than stock !

    Budman1

Show 1 more answer Helpful (0)

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Customer Reviews (100+) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Handling Improvement 4.554455 4.6
  • Ride Quality 4.742574 4.7
  • Fit 4.910891 4.9
  • Bang For Your Buck 4.74 4.7



  • 4/5

    Installation Time: Less than 1 Hour

    March 24, 2017

    Just Installed

    I just installed these to replace some sensatracs. So far they are handling the dips, bumps, holes and otherwise horrible roads in San Diego. The only issue that I had was that they didn't come with a nut for the top. It was stated that it used factory hardware and unfortunately, I didn't have factory shocks anymore. For anyone interested the nut is a M10-1.50

    GeorgeC

    Year: 2005 Submodel: V6

    Helpful (3)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    July 06, 2014

    Great shocks

    I bought the shocks and struts and had them installed my stock Ford shocks were well worn out and made for a very hash ride at 80 k miles . Originally I was going to get the adjustable Koni's but since I don't track race there was no point in it . I was looking for a smooth ride for my mustang and they delivered soft yet firm and the ajustables would have not provided a better ride at full soft setting , so if you don't track race on weekends and just need a good all around street shock hence the name Koni STR's then you can't go wrong.

    Gladiatro2012

    Year: 2005 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    August 18, 2013

    Koni STR Rear shocks

    Installed these on my used '06 GT. Installation was a breeze. It took about an hour with basic hand tools and jack. I just wish the manufacture supplied hardware. I installed a set of SR springs a couple of months ago and I was trying to save some cash and decided to run the shocks that were on the car, they looked fairly new. That didn't work, the rear was soft and bottomed out. I read reviews on these and bought a set. The ride and handling are 100 percent better. The car is riding on rails. Lesson learned. Thank you AM for excellent service.

    Rjmech

    Year: 2006 Submodel: GT Atlanta, GA, USA

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    June 27, 2012

    Great shock for the money

    Just installed these on my '07 Shelby GT to replace the leaking Ford Racing shocks after only 24,000 miles. They seem to be a little softer than the original shocks so the car rides a little better. I haven't noticed any real difference in handling which is a good thing. The fit was perfect and intallation was easy. A great replacement shock for the money. hopefully they last longer than the origianls,

    Dave712

    Year: 2007 Submodel: GT Pawcatuck, Stonington, CT, USA

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    October 13, 2013

    Very good results

    I have Ford 1" lowering springs and had KYB's installed, The Koni's are a huge improvement in ride and keeps the car on the road better. they are a little soft for high end performance but a good balance for a DD. Be worned though, the Koni's do nopt come with mounting hardware - you are expected to reuse the old. With the KYB's the hardware did not fit. Koni stepped up and sent the required hardware though no charge - so thank you Koni.

    Vaporstang2008

    Year: 2008 Submodel: GT New York

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    July 26, 2013

    Ornj

    Some people have said that these shocks are simply a replacement for the stock shocks and they are not. They are stiffer than stock and provide more control on the body as the car goes over bumps, less bounce up and down. While this is a tad more jarring, it's nothing that someone who is familiar with driving a performance car can't live with, as it's not much worse than stock. The orange color is a nice change of pace over the stock black as well. Overall I recommend them as an improvement-but not a dramatic one-over stock.

    Vankor

    Year: 2008 Submodel: GT WI

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    April 19, 2013

    Fantastic!

    If you haven't already trolled the forums and read about these, here it is. They are awesome. combined with the right spring and new strut mounts, they totally transform the ride. Highly recommend these.

    Davidh671

    Year: 2013 Submodel: GT Austin, TX, USA

    Helpful (2)

  • 3/5

    Installation Time: Afternoon

    May 19, 2017

    Some Good....Some Bad.....Expected More

    I purchased a set of STR.T struts and shocks for my 14 V6 two years ago from AM. The car had 9K miles from new when the Koni units were installed, and the OEM shocks and struts were way too soft for anything other than a Buick, I had some concerns about the new rear shocks when I unpackaged them in that the gas pressure was not equal between the two shocks, nowhere close, but was in a time pinch so I tried them out anyway. The front struts appeared fine. After installation ( stock springs, btw ) the ride was much better damped and firmer comparing the Koni's to OEM. ( that's the good part ) After living with the Koni's for two years and about 11K miles my experience is this: the front struts are fine and do a good job damping but I would say they are starting to exhibit some degradation in the damping. (not so great to notice this with relatively few miles on them) There is also a slight fitment issue that was observed after the car was back on the ground...front ride height was down 1/4-1/2". This strongly suggests the spring seat on the strut tube is welded at the wrong location. The rear shocks were always a puzzle and I believe there was something wrong with them from the beginning. They control/damp larger slow axle motions well but they always had a very stuttery feel going over small high frequency bumps like there was a dead zone with little damping at all when the shock was changing from compression to extension rapidly over small closely spaced bumps. There was also a lot of chassis noise from the rear suspension going over the small bumps as well. This was exhibited from when installed and over time got worse. It made my not-so-old Mustang feel like the rear suspension was falling apart prematurely. I replaced the rear shocks yesterday with a quality set of another brand and the chassis noise and stuttery feel was eliminated completely. The Koni's were installed correctly and the fasteners were all still tight when removed. One of the pair had zero gas pressure left, the other very little, and both were fairly "soft" when cycled by hand compared to new. Due to the problems with the rear shocks and the incorrect spring seat height on the strut tube, I can't give a great rating overall. I purchased the Koni set expecting a world class product based on the reputation of the brand. I am not impressed with these products. They were manufactured in Argentina instead of Holland, so this may be a factor in build quality and reliability. I may have gotten pieces from a bad batch...who knows.... I know I expected a lot more at this price point. The shocks I chose to replace the Koni's were cheaper and have the same firm damping/good handling without chassis noise or the stuttery axle movements over closely spaced small bumps. I am keeping the Koni struts on the car for now, but if the damping of these decays much further they will be replaced with a different brand.

    CraigC

    Year: 2014 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    June 23, 2016

    koni shocks

    The ride quality much better.It was much smoother. I say it's better to buy the who koni parts so the ride handles much better.

    cars

    Year: 2007 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 06, 2016

    Awesome shocks

    I was having problems with bottom out on my car and these shocks did the job i was very pleased with the quality of these shocks and the price very happy thanks again.am

    Aj

    Year: 2006 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 29, 2016

    Unbelievable difference

    I replaced the rear shocks and the front struts with the STR.T on my GT500 vert. I can't believe the original ones were that bad. They seemed to have no issues when I removed them, but the Konis made a world of difference. The ride is smoother, and more agile. Also, I don't understand how but they made the bump steer much better. These are a great upgrade for your Mustang.

    Fastback

    Year: 2007 Submodel: GT500

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    February 19, 2016

    The best!!!

    If u guys wanna buy those expensive ones this one is the best and you can really fell the difference between the stock and this koni shocks..

    Wen4six

    Year: 2010 Submodel: GT Lawton, OK

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    August 25, 2015

    these are a must have

    installed these in less than an hour.just be ready to reuse your original hardware.ride and handling improved drastically over the stock shocks

    BadassStang

    Year: 2007 Submodel: V6 lakewood ca

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    July 13, 2015

    Great Value

    Installed these with the Struts and SR Performance springs. It all comes together nicely. The Springs are fairly firm and this shock feels a tad soft for them, but it's still a great setup. No doubt, if you can afford the Yellows, go for it, but if you're on a budget like me, these are great.

    lawman834

    Year: 2013 Submodel: V6 McKinney, TX

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    January 02, 2015

    Improvement over stock

    Installed a set of Koni non adjustables front and rear along with a set of Eibach sportline lowering springs. First couple of days had a bad squeak from front struts. After a couple of days squeak went away, the ride is firm but acceptable. Definitely improved the overall appearance and performance of the car.

    2manystangs

    Year: 2013 Submodel: GT Louisiana

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    October 17, 2014

    Lowered 08 GT/CS

    Awesome Product! My GT/CS has the HR Super Sport springs so it has been lowered quite a bit. I have to cut the bump stops down so it was not sitting on them. the problem was the stock shocks were very easy to bottom out hitting bumps and in particular badly made bridges that had a lip on and off. I put these on the back of the car and WOW did it change the ride. Much tighter but smoother over rougher roads. My old shocks were not leaking or have any visible signs of being bad but they sure don't compare to these Koni shocks. One of the best investments so far. I marked it took an afternoon to change but that is kind of misleading because I also change the brakes at the same time so just the shocks would have been considerably less time, maybe an hour.

    dfurgeson

    Year: 2008 Submodel: GT NC

    Helpful (1)

  • 3/5

    Installation Time: Less than 1 Hour

    August 22, 2014

    Koni STR.T's good replacement shock

    Install was extremely easy. However, I haven't felt any noticeable differences in performance and ride quality. Would recommend buying these as a replacement if the oem equipment failed.

    Johnson1984

    Year: 2014 Submodel: GT Springfield, MA, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 23, 2014

    Great ride

    I installed these with the matching struts and Roush Lowering springs. Ride is awesome!! Took my buddy and I about 4 hours to install. My car has a whole new attitude.

    Chainkicker

    Year: 2010 Submodel: GT Albuquerque, NM, USA

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    April 08, 2014

    Love my new KONI'S

    Fast delivery and a piece of cake to install. Impact tools make it quick!

    Nick999

    Year: 2012 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    July 29, 2013

    Great Shocks for the Price!

    These are great shocks. Put them on the rear of my 2010 Mustang V6 convertible and they perform wonderful. I had previously had Monroe Sensatrack shocks on the rear and there is just no comparison, these are so much better. Highly recommend.

    Jmatt

    Year: 2010 Submodel: V6 Greenup, KY, USA

    Helpful (1)

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