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Schroth QuickFit Harness - Black (05-17 All)

Market Price $303.99 You Save 12% ($34.99)
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  • Item 389993

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    Features, Video & Details

    • 4 Point Removable Harness
    • Ideal for Track and Street Use
    • ASM - Anti SubMarining Technology
    • Works with Factory Seat Belt Receptacles
    • 2" Wide Black Polyester Webbing
    • Fits All 2005-2017 Mustangs

    Review & Installation Video

    Review & Install Video

    Four Point Removable Harness. A Schroth Quick Fit Four Point Removable Harness will keep you securely behind the wheel of your Pony while you're carving corners at the track. Then it can be easily removed giving you full access to your interior for people or cargo on the street. Making the Quick Fit the perfect solution for Mustangs that pull double duty on the street and at the track.

    ASM Technology. The Schroth Quick Fit features Anti-Submarining (ASM) Technology that positions the lap belt low across the pelvis. This keeps your hips and back side firmly planted in the seat preventing you from sliding under the lap belt in the event of a collision.

    Works with Factory Safety Restraint System. The Schroth Quick Fit works with your Mustangs existing factory seats and safety restraint system allowing for easily installation and removal. The Quick Fit clicks into the car's female seat belt receptacles and anchors to the factory points which are load tested to withstand a 3,000-pound force for 6 seconds. By using the stock seat belt receptacles the vehicle is aware that a person is seated and restrained, silencing the warning chime as well as taking full advantage of the factory seat belt pre-tensioner.

    Polyester Webbing. Schroth's Harness Belts are made from 2" wide polyester webbing. Engineered with “memory effect” Schroth's polyester webbing features special mono filaments laterally woven in, that perform like small leaf springs to keep the webbing flat. This results in better load spreading over the full width of the webbing. Polyester webbing also has a better force/elongation ratio, when compared to standard Polyamide (NYLON®) webbing, so it can convert more energy during an accident.

    Application. This Schroth QuickFit 4-Point Black Harness is designed to fit all 2005 to 2017 Mustangs with the factory seats and safety restraint system. Including the V6, EcoBoost, GT, Bullitt, BOSS, Shelby GT500 and Shelby GT350 models. Available individually or as a set of two. Please select from the options listed above.

    Fitment: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    Driver Side Harness
    • (1) Left Belt
    • (1) Left Side Lap Belt Connector
    • (1) Left Side Tail Strap Connector
    • (2) Reduction Collar
    • (1) SCHROTH ASM Sticker
    • (1) SCHROTH Racing Sticker
    Passenger Side Harness
    • (1) Right Belt
    • (1) Right Side Lap Belt Connector
    • (1) Right Side Tail Strap Connector
    • (2) Reduction Collar
    • (1) SCHROTH ASM Sticker
    • (1) SCHROTH Racing Sticker
    Installation Info

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    Questions & Answers (9)

    5 Top Rated Questions

    Will this harness set work on my 2017 Shelby GT350? Thanks, Rick Gero

    • Yes, this Schroth Harness will indeed work for your 2017 GT350.

    Helpful (1)

    Is the use of the rear seats for anchorage required? Or can is be positioned at the rear bolt of the front seat for usage of the back seat?

    • The rear anchorage is required to install the Schroth QuickFit Harness. The anchorage is purposely not placed at the back of the front seat for safety reasons.

    Helpful (1)

    Is there a 2018 version ?

    • These will work with the 18 models.

    Helpful (0)

    I have both the rear seat delete and the Corbeau harness bar. Can I attach the harness thru the harness bar?

    • The Schroth QuickFit Harness is designed to be used with the OEM rear seat buckles, and would not work with a harness bar.

    Helpful (0)

    Would installing this void my manufacturer warranty?

    • Hello! Replacing your factory seatbely with The Schroth QuickFit Harness may void your factory warranty. We recommend checking with your dealership to be certain.

    Helpful (0)
    Post Your Question
    4 More Questions
    I'm a bigger guy and was wondering if there was any kind of weight limit? 1 answer
    Can you remove the back seat and still use these? 1 answer
    I was involved in a accident and my seat belt dont work if i was to buy this instead would i still have the chirping noise u get while not wearing a belt. And would i also have to but a regular belt 1 answer
    Does this require anything else to go with it or do we just need this? 1 answer

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    Customer Reviews (20) Write a Review

    Overall Rating 4.8

    out of 5 stars

    • 5/5

      March 02, 2019

      Great quality

      Bought this for my 2017 gt350 and it was an easy install took around 45 minutes or less. High quality look and feel.


      Year: 2017 Submodel: GT350

      Helpful (0)

    • 5/5

      May 06, 2018

      Could have better instructions

      I really like the harness once you get it installed, is real easy to switch between the OEM 3 point and the 4 point for when you need/want it. The only thing I didn't like was that the instructions could have been better written and they left out the fact that you will need to cut out some of the plastic side panel to fit the new bracket on S550 Mustangs. Its alot easier just to watch a YouTube video or two.


      Year: 2016 Submodel: GT350

      Helpful (4)

    • 4/5

      April 24, 2018

      Quick Fit

      Good quality product that installs under an hour. Instructions from manufacturer were not for an S550 and the lower mounting point is different. This harness is a must have for Autocross and spirited driving. Keeps me planted in my seat. Improved my times more than some of my pricier mods.


      Year: 2015 Submodel: GT

      Helpful (3)

    • 5/5

      April 14, 2018

      better driver

      i have a very track worthy track pack GT ,with all the suspension and brake mods, and this is clearly one of the best ways to get around the track !!


      Year: 2013 Submodel: GT

      Helpful (3)

    • 5/5

      March 29, 2018

      Should've done this sooner!

      This is probably one of my best track related mod's that I've done. This harness keeps me planted in my seat nicely and was really easy to install. It probably took me about 30 minutes to install and looks right at home in my cockpit. If your on the fence, do it!


      Year: 2016 Submodel: GT

      Helpful (4)

    • 5/5

      January 18, 2018

      A 4 point easy to use

      Great fitting 4 point with about 1.5 hrs of labor. Takes about 10 mins to get it ready from street to drag or auto cross. I'm 6 foot 4 and a big guy and it still fits me, I am impressed with the quality albeit pricey but no harness bar needed.


      Year: 2016 Submodel: GT

      Helpful (4)

    • 4/5

      October 11, 2017

      These are Awesome for Track days

      If you do the occasional Road Course, Auto Cross, or Dragstrip and do not want the back seat to become unusable, this is an awesome alternative to installing a bar and belts. I would of gave this 5 stars but the installation is a bit fiddly. You need to remove the the back seat and the panels on each side of the seat. You also need to trim the hole for the floor anchor to fit the new connection. As for fit feel and function. Out on the track the belt keeps me firmly planted. My sides no longer hurt after a day of racing. And I can go 30 minutes with no discomfort what so ever from the belts. Took about 15 minutes to get them adjusted to perfection but after that I could pop in and pop out no issue. Tip here: use the seat adjustment to tighten and loosen the belts, the way they can stay adjusted all day and you can pop in and pop out of the car without fiddling with the strap adjustments.


      Year: 2017 Submodel: GT

      Helpful (5)

    • 5/5

      August 13, 2017

      Schroth harness

      Definetly one of the best investments I have made by far when it comes to safety while driving my car. Would recommend to anyone any day. Install was easy and took less than 1 hour.


      Year: 2015 Submodel: EcoBoost

      Helpful (5)

    • 5/5

      July 08, 2017


      Easy to install and feels very safe. .. would recommend the product


      Year: 2016 Submodel: GT

      Helpful (4)

    • 5/5

      June 10, 2017

      Perfect fitment

      Easy installation! Holds snug with the Recaro seats. Worked great at Road America track day. Quality is Excellent!


      Year: 2013 Submodel: Boss

      Helpful (4)

    • 5/5

      May 05, 2017


      It was a pretty easy install. Found an installation vid on YouTube. Used it for the AutoX last weekend and really kept me in a good position.


      Year: 2017 Submodel: GT

      Helpful (5)

    • 5/5

      April 29, 2017

      Schroth QuickFit review

      After the purchase of my '08 Bullitt, I looked for an affordable harness option that would work with my OEM seats and that was least intrusive to the car (roll bar requires drilling/welding, harness bar doesn't allow use of rear seats). I found the QuickFit harness, and it's absolutely perfect. The quality of the belts is top notch with a very OEM feel. The buckles also have an OEM feel and interface with the car's buckels seamlessly, allowing me to retain use of the rear seat with a simple 10 second removal. During a recent autocross, the harness did a great job of keeping me in place!


      Year: 2008 Submodel: Bullitt

      Helpful (6)

    • 4/5

      September 20, 2016

      Very nice quality with easy installation

      Once you get your mustang to corner hard, you quickly realize the stock lap belt will not hold you upright in the seat. This quick fit harness is a simple and very effective way to remedy that problem,and very easy to install. Should you need to remove it, it only takes seconds to go back to stock as the factory seatbelts are not removed or altered by this harness. Initially you will need a T50 torx socket to remove and reinstall the factory seat belt anchors and you will need to bend the rear harness attaching bracket by twisting it 45 degrees as per the supplied picture. I used two crescent wrenchs and twisted it by hand to match the picture. It then fit perfectly with no further modifications. Adjusting the belts is relatively easy and the instructions provided are quite good in helping you achieve the correct adjustments. For my application, I tightened the back seat harness and took all the slack out of it. The belts then lay across my chest at the proper height as per the instructions. The quality of the belts is very good and they look very oem in appearance. My only criticism is that I feel the manufacturer should have supplied the rear seat belt anchor bracket pre-bent. Everything else is bolt on and the bracket should be also. For that reason only, I rated the harness 4 stars instead of 5.


      Year: 2012 Submodel: V6

      Helpful (6)

    • 5/5

      August 25, 2016

      Quickfit 4 point harness

      Fits great holds you right in place and was easy to install only thing I needed(which a buddy had) was a torx 30 bit to remove the bolts to put in the harness


      Year: 2008 Submodel: GT

      Helpful (6)

    • 5/5

      July 11, 2016

      Great Option for Track Days!

      The Schroth QuickFit Harness is a great addition to your daily ride and the Quick Fit Pros allow you to run a Hans. Both systems are clearly better than the stock 3 point belts for track day. If your not ready for bar and race seats, then the Quick Fits are a good in between step. Easy to install and remove when you're not at the track. Highly recommended!


      Year: 2007 Submodel: GT

      Helpful (6)

    • 5/5

      June 15, 2016

      Schroth QuickFit Harness

      I installed this on an 06 GT that is my daily driver. I wanted a 4 point harness but did not want to have to also install a harness bar. I thought this was the perfect solution. The installation was pretty straight forward and took about a 1/2 hr. The only step in the install that I didnt like is that you are required to bend one of the mounting tabs from the kit that attaches to one of the factory rear seat belt locations. In my opinion, I think this is something that should already be done. When everything is done and properly adjusted the feeling of being strapped in is awesome! It really holds you in tight and makes you feel more connected to the car. This harness isn't any more difficult to use than the factory belt and definitely looks better too! I'm very happy with this harness and highly recommend it.


      Year: 2006 Submodel: GT

      Helpful (5)

    • 5/5

      May 26, 2016

      Great product!

      I was hesitant to order this as I already had a 3 point harness. However this product is totally worth the money! I needed something to keep me in the seat during autocross events. This did the trick! Not only that but it hooks into your existing seat belt to make sure the alarm stays off and only takes about 30 seconds to remove it when you are done! I highly recommend this product. On my first event with this harness a fellow mustang friend loved it so much that he went and bought one too!


      Year: 2014 Submodel: V6

      Helpful (7)

    • 5/5

      May 04, 2016

      Road America

      Just completed MFBA Trackday at Road America. Schroth harness worked as advertised, kept my torso in place that allowed me to focus on driving verses using my muscles to keep my body upright in high g corners. Following the supplied instructions made it an easy install. After Gateway Motorsports Park Trackday (road course) I realized I needed to upgrade to a harness configuration, and this was the answer. Quality/build is evident in the harness. Buy with confidence :-)


      Year: 2011 Submodel: GT

      Helpful (5)

    • 5/5

      March 07, 2016

      Great Investment !!! - Schroth QuickFit Harness

      Product is amazing in my 2015 GT! Makes you feel Race Car inspired and knowing that you'll be safe in the 4-point harness. You'll never want go back to stock after using this great harness! I also personally recommend this product since its easily removable if you tend to have pasangers in the back. Overall the harness feels great, look even better than stock, and keeps you on your seat. I give this a Two Thumbs Up !!


      Year: 2015 Submodel: GT

      Helpful (5)

    • 5/5

      February 25, 2016

      Great Harness

      The quickfit harness is awesome! It's a simple install and the quality is great. I love how I can finally get a race harness and keep my factory leather seats. They look good too!


      Year: 2006 Submodel: GT

      Helpful (5)

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