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SR Performance Bumpsteer Kit (05-14 All)

Item 12780
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Market Price $159.99 You Save 13% ($20.00)
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$139.99 (kit)

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      Review & Installation Video

      Hey guys, Stephanie with, and this is my review of this SR Performance Bumpsteer Kit for the 2005 to 2014 S197 Mustang. This bump steer kit is going to be a good option for anyone that has a lowered S197 or is thinking about lowering. A bump steer kit is really for lowered cars because any time you lower your Mustang, you're essentially changing the geometry of your suspension. When you start playing around with geometry, you have to keep in mind that it could possibly create a bump steer problem, or basically an undesirable change in tow angle.This kit is designed to stop that bump steer and keep everything in line. So your stock components do not have any adjustability to them, and bump steer isn't necessarily an issue that can be foreseen 100% of the time with a lowered car. So I'd say it's unpredictable, which in turn makes handling and cornering unpredictable. But if we take a look at this kit that's designed to eliminate that problem, I see a few things that are worth mentioning here.The first thing I see here are spherical rod ends that also have tapered shafts. These are designed this way so you don't have to drill the spindle for the install. Another thing I'm noticing is a handful of bushing spacers that are going to help correct the angle that the tie rods meets the hub assembly which is going to change per car depending on the suspension set up. There are about 12 here, which happens to be the norm if we compare this kit to other options that are out there. So it's nice to see that even though SR is more of a budget friendly brand, they still give you a comparable product at the end of the day. Like most suspension mods, this kit does work best with other suspension mods like lowering springs and sway bars and caster camber plates. These are kinda like the final component to lock in the steering and handling, but even if you don't have a ton of suspension mods, and just have a set of springs, I'd still strongly suggest a bump steer kit, because the moment you put lowering springs on a car, you've created a need for this kit. And this happens because, like I touched upon earlier, when you lower a car, an angle is created where the tie rod meets the hub assembly. You don't want this angle, and the shims in an adjustable bump steer kit like this one here help to eliminate that angle. Now when we start to check out the cost, this kit costs in the price range of $100 to $200, being closer to that $100 mark. And like I just said, it is less expensive than other options that are currently on the site. When it comes to the install, guys, I don't say this too often, but I do recommend taking this to a shop unless you have prior experience in this area. You're going to have to get the car aligned after the install anyway, so you can just drop it off to get everything done in one shot. This is a three out of three wrenches on the scale, and if you do decide to do this at home, it's probably going to be a half day's worth of work. And I'm only saying that this is a difficult install because you do need some expertise to get this done. If the install and setup are done incorrectly, then you're just going to be making the bump steer worse. So if you're doing this yourself, you are going to need a handful of tools. A ratchet and an 18 mm, socket, a small and large adjustable. Some WD40 might help. A hammer or mallet and a tie rod end separator could be helpful too. You do want to make sure that you have a torque wrench to keep everything in spec, though, and you've gotta get to the wheel hub, so you'll need a jack and stands to get everything up so you can disassemble the outer tie rod from the wheel hub, and this is where you'll need your 18 millimeter.You can expect to see a nylon locking ring that you'll have to back off too, and you can use the mallet to knock the top of the bolt to separate the tie rod from the hub assembly. Then it's just a matter of removing the heavy nut keeping the outer tie rod end of the wheel hub assembly and unscrewing the outer tie rod from the inner one. Then you're going to want to compare the old tie rod to the new one, and make sure that the new assembly matches the length of the old assembly. And just tighten the jam nut on the steel end against the collar to lock everything into place. The spacers that are provided are to be used between the inner tie rod and the hub assembly, and the amount of spacers that go on the top versus the bottom depend on how much you've lowered your vehicle. After all of this is done, it's just a matter of reassembly and torquing down the two nuts towards each other. And don't forget, if you do this at home, while you can get your tow close to where it needs to be, you should still go for an alignment after the install. So if you're lowering your Mustang or you already have, this is a kit that you should really consider to keep your S197 suspension in check and functioning to the best of its abilities. This is a solid kit that offers a lot of adjustability, and as far as price, it's less expensive than the other options on the site. You can check this kit out more online and see what other customers are saying about it. I'm Stephanie, and for all things Mustang, keep it right here at

      Product Information

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


      • Corrects Bumpsteer
      • Improves Handling
      • Adjustable
      • Perfect with Other Suspension Mods
      • Fits All 2005-2014 Mustangs


      Improves Handling. Correct your Mustang's front end suspension geometry and eliminate bumpsteer with a SR Performance fully adjustable bumpsteer kit. Replace your stock, non-adjustable components and gain better, more predictable cornering and handling.

      Adjustable. SR Performances fully adjustable kit provides a wider range of adjustment than other kits to allow you to fine-tune your suspension for improved steering response and crisp cornering.

      No Drill Installation. Unlike other kits which require you to drill your spindle out during installation, SR Performance Bumpsteer kit features spherical rod-ends with tapered shafts for an easy installation with no drilling.

      Application. This SR Performance Bumpsteer kit is designed for all 2005-2014 Mustangs, including the V6, GT, Bullitt, BOSS and Shelby GT500 models.NOTE: Bumpsteer is a change in toe angle caused by the suspension moving up or down. Bump-steer is built into the geometry of the suspension and steering system, and has nothing to do with turning the steering wheel. The effect of bumpsteer is for the wheel to toe-in or toe-out when the suspension moves up or down. This toe change or "steering" occurs any time the suspension moves, whether it is from body roll, brake-dive, or hitting a bump in the road. Bump steer is undesirable because the suspension is steering the car instead of the driver. To fix a bumpsteer problem, you need to alter the height of the outer tie-rod relative to the steering rack with adjustable tie-rod ends, also known as a bumpsteer kit.

      SR Performance

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

      MPN# 12780

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (46)

      Write a Review

      Ratings Summary

      4.2 out of 5 overall rating from 46 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • January 26, 2020

        5 2006 GT - Loopydrummer Installation Time: Less than 1 Hour

        Solid and strong

        Got these to get rid of the horrible bump steer after lowering my car. Follow the instructions closely and get an alignment immediately. The alignment shop had to adjust the positions of the spacers, but they work perfectly. No more bump steer.

        Helpful (0)
      • January 16, 2020

        5 2006 GT - Tech Installation Time: Less than 1 Hour

        Great product

        Overall this kit is machined very nice! I would not waste my money on the Steeda kit that everyone looks at. This kit is almost identical and easy to install. My 2006 GT has been lowered 2.5 inches in the rear and 2 inches in the front. The kit has eliminated almost every bump steer issue I had when hitting bumps and uneven spots in the road!

        Helpful (0)
      • December 16, 2019

        1 2008 GT - Frank Installation Time: Afternoon


        The heims went out in 6 months. Not a great product.

        Helpful (0)
      • November 15, 2019

        5 2007 GT - DrewB


        They look great cant wait to try them out and see how they perform on the road after the weather clears

        Helpful (0)
      • September 03, 2019

        2 2006 GT - Acres Installation Time: Afternoon

        Short Lifespan

        Lasted a little past a year until the end joints developed some play - hard to move by hand, and once on the car you could hear and feel the ball popping inside the socket. I considered replacing the end joint and adding some rod end boots but I ended up ditching them all together. If anyone needs / wants the measurements I read 3/4in. x 3/4in on two sets of calipers.

        Helpful (0)
      • August 19, 2019

        2 2007 GT - JuanStang Installation Time: Less than 1 Hour

        Annoying Noises

        My set did not come with the SR logo and It made annoying noises every time the suspension moved and it was worse when making turns. I replaced the bump street kit with stock tie rod ends and the noises are gone. I recommend these for track only stangs. Not for the street.

        Helpful (0)
      • July 13, 2019

        3 2007 GT - JuanN Installation Time: Less than 1 Hour

        Noise driving me crazy

        I love AM but this kit is horrible. I would have gave it 5 stars if it were not for the horrible noise it makes every time the steering wheel is moved. I have to grease the joint before an event so that I'm not embarrassed by these things. I'm going back to stock.

        Helpful (1)
      • May 07, 2019

        1 2007 GT - SeanR Installation Time: Afternoon

        Embarrassing noises!

        I’ve read a few of the posts that complain about these kits being noisy after a year. Mine were noisy after a month!! I’ll be calling American Muscle this week to see if they will help make this right.

        Helpful (5)
      • March 08, 2019

        5 2008 GT - ChrisM Installation Time: Less than 1 Hour


        If you lower you car at all get these. They may seem pricey but so is charging all your tie rods and possibly steering rack! Changed the whole driving experience of my car.

        Helpful (1)
      • February 26, 2019

        5 2007 GT - GT Installation Time: Less than 1 Hour

        SR Performance tie rods

        Great product perfect fit steering and performance is awesome

        Helpful (0)

      Questions & Answers (10 answers)

      5 Top Rated Questions

      Would I still need to purchase a caster/camber plate as well or would this eliminate the need to?

      • The SR Performance Bumpsteer Kit will not fit caster and camber. Depending on how out of alignment the suspension is, you may still need to get caster camber plates.

      Helpful (1)

      Does this kit fit on 05-09 V6 Mustangs with 16 inch rims?

      • Yes, the SR Performance Bumpsteer Kit (05-14 All) will be able to work with 16 inch rims since it provides support to a wide range of suspension adjustments.

      Helpful (1)

      Alignment Do you have to get an alignment after installing this kit?

      • You will most likely have too, but i haven't been able too because I can not drive the car till I get new wheels.

      Helpful (1) Show 1 more answer

      I am about to purchase the Ford Performance Assembled Handling Pack for my '14 GT. Is this kit recommend for use with that package?

      reading through the reviews, someone said these will not work on 17" wheels. Do they work with 17" wheels?

      • This will work on a 17" wheel yes.

      Helpful (0)
      Post Your Question
      5 More Questions
      Will this work with stock suspension 1 answer
      Is there a reference chart stating the amount of spacers needed to use on top or bottom? 1 answer
      Since there is no closed boot on this design, is there any special care needed for the ball joint? 1 answer
      Is this the right kit for replacing my outer tie end rods? I need to replace inner & outer tie end rods. I already have the inner from you'all & was going to purchase outer tie end rod but saw the bumpsteer kit! Please let me know if I just need to purchase bumpsteer kit by itself or with outer tie end rods? Really don't know if I have a steering problem but just want to make sure I purchase correct parts because haven't replaced either tie end rod since I have had vehicle which I purchased in 2011! (2006 Ford Mustang GT) 2 answers
      2009 balljoints? Does this kit need upgraded ball joints like the steeda kit? Or does the stock ball joints work ? Ford tells me that the ball joints are not replacable id have to get theeenire lower control arm 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) End links
      • (2) Tapered shafts
      • (4) Nuts
      • (2) Washers
      • (12) Bushing spacers

      Tech Specs

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