Category Archives: Product Info

Steeda’s All New S550 Chassis Jacking Rails, Now Available!

The team at Steeda was asked to come up with a lightweight Jacking Rail system that didn’t add a bunch of weight to your 2015-2016 S550 Mustang. Well, the wait is over! steeda-s550-mustang-ultra-lite-chassis-jacking-rails-15-16-all-555-5205-000 Made in-house from the same material we have used to keep Fox Mustangs from flexing for 25+ years, these chassis Jacking Rails feature CAD-designed, laser cut, high-strength steel brackets and stout 2″ x 1-1/2″ steel tubing. Powdercoated wrinkle black for a low key, yet durable finish, these will last a lifetime under your S550 Mustang. Unlike the other options available, Steeda includes Zinc-plated, flange-headed, grade 10.9 hardware – a simple bolt-in design that can be removed at any time as they use factory mounting holes. steeda-s550-mustang-ultra-lite-chassis-jacking-rails-15-16-all-555-5205-02 These allow you to jack up your Mustang with confidence anywhere along the jacking rail, preventing damage to your factory pinch welds. They provide a great point for jack stands and 2 post lifts. Lastly, these will work with Steeda’s IRS Subframe Support Braces without interference. Steeda’s new Ultra Lite Chassis Jacking Rails add strength and function to your modern muscle car.

Key Benefits:
- 40% lighter than the competition, only 14 lbs.
- Allows you to jack up your S550 anywhere along the jacking rail, preventing damage to your factory pinch welds
- Open mounting bracket design prevents water from getting trapped and therefore eliminating chances of rust
- Will work with Steeda’s popular IRS Subframe Support Braces
- Includes all necessary mounting hardware unlike the competition
- Fits all S550 models (GT, V6, EcoBoost, Coupe/Convertible) – Lifetime warranty, made in the USA

steeda-s550-mustang-ultra-lite-chassis-jacking-rails-15-16-all-555-5205-04 The install is super easy, honestly takes 10 minutes and that includes jacking the car up if you choose to for the install. For the price ($139.95 shipped), this mod is a no brainer. We have these in stock and ready to ship!

Steeda – Speed Matters

Steeda’s New S550 Axle-Back Exhaust

Steeda is proud to introduce our new S550 Mustang GT Axle-Back Exhaust System! We’ve designed this fastback exhaust system to bring out the deep muscle car tone that’s begging to come out of your 5.0L powerhouse. Our exclusive axle-back exhaust design improves exhaust flow and is the perfect combination of sound and tone without introducing any unwanted drone.

Our axle-backs are constructed from 409-stainless steel, known for being corrosion-resistant. The tips of our Steeda axle-backs are made of polished 304-stainless steel and feature a laser-etched Steeda logo. The piping size is 3″ all the way up to the chambered mufflers – the tip size steps up to a nice big 4″ that fills in the factory rear valance perfectly.

Similar to other S550 axle-back exhausts, installation will require some fabrication – in order to install this axle-back kit, you will need to cut and remove the factory assembly. Once removed, our Steeda S550 axle-back system can be clamped on.

We designed this kit to be ideal for the daily driver who’s looking for a deep, muscle car tone when they want it while providing zero drone whatsoever.

Key Benefits:
- Adds aggressive muscle car tone
- Great for daily driving, zero drone
- Constructed from 3″ 409-stainless steel piping up to the mufflers
- Featuring 4″ 304-polished stainless steel tips
- Made in the USA

Link to our S550 axle-backs (#159-0001)

Curious to hear how it sounds? Check out our exhaust video:

Product photos:







We have these kits in stock and ready to ship! Purchase your Steeda S550 Mustang Fastback GT Axle-Back Exhaust System for your 2015-2016 Ford Mustang GT at Steeda Autosports today!

Steeda – Speed Matters

Steeda and Nitto Tire Testing NT555 G2

As many of you may know, Steeda has a long-standing relationship with Nitto Tire – we run their tires on many of our street/strip cars and recently had the exciting opportunity to perform track-testing for their all new Nitto NT555 G2 tires at Palm Beach International Raceway (PBIR).





We brought out two S550 Performance Pack GT’s with equal entry-level mods (Steeda springs, Steeda IRS subframe bushing support system, Steeda cold air intake, Steeda tune) to perform an apples-to-apples test comparing their existing NT555 tire to their all-new NT555 G2 tire.





60-0 Braking:
This kind of testing solely reflects the capabilities of the tires, brakes, and suspension equipped on the vehicle. From a driver-standpoint, it’s imperative to ensure the brakes are hit at the same point on the track at the same speed with max pressure applied to the brake pedal. This technique allows the vehicle’s Anti-Lock Brake system to do its job at peak performance. Considering both vehicles were identical in brakes and suspension, the only variable left was the tires being used. Data we gathered shows the NT555 G2 stopping the car in 76.5’ from 60mph, which is far superior than the current generation NT555 at 96.75’. One thing that these numbers do not show is directional control while applying the brakes – the NT555 G2 had a much more confidence-inspiring feeling transmitted through the steering wheel while the brakes were applied.



Driving Experience:
The NT555 never inspired the high-level of confidence that the G2 did while turning into and exiting the corner. What we mean by that is, the G2 – when turning into a corner – transmitted a feeling of the tires gripping sooner than the NT555 by the vehicle actually turning. When the driver feels that the vehicle is now changing in the intended direction that the driver planned, then the driver can place their focus on the exit of the corner maximizing the speed to the next corner; it’s at this point that the driver usually applies throttle to begin the acceleration process. During the acceleration process out of the turn is when forward grip is imperative to achieving a good lap time. The G2 allowed us to not only apply more throttle input, but also had less slip while exiting the corner. When tires slip during exiting a corner, it is usually the rear tires on a rear wheel drive vehicle (such as the S550) resulting in oversteer. When the rear tires slip while coming out of a corner, they are no longer propelling the vehicle forward and instead usually the rear of the vehicle begins to slide in the opposite direction of the turn. If the tires are sliding, usually the driver has to react and either reduce the throttle, or alter the intended direction of the vehicle to compensate – neither of which help to reduce lap times. As we mentioned above, it is also worth noting that braking feel was considerably different between the NT555 vs G2. The G2 seemed to require less pedal pressure to achieve the same desired braking effect as the NT555 – this resulted in less weight transfer while under braking, and a more stabilized feeling while cornering the vehicle as the weight was not all transferred to the nose at turn-in or corner entry.



NT555 Key Benefits:
- compound that offers balance between tread wear and traction
- stable cornering due to reinforced tread blocks
- wide contact patch

NT555 G2 Key Benefits:
- cornering stability due to directional tread pattern
- increased wet traction performance
- increased braking performance
- wide contact patch



We’re really excited for the release of Nitto’s NT555 G2 line and highly recommend them for the S550! Here are some photos from the event!





























Steeda – Speed Matters

2015 Mishimoto Ford Mustang EcoBoost Oil Cooler

When we heard about Mishimoto’s 2015 Ford Mustang EcoBoost Oil Cooler, we had to put it on our Steeda 2015 Competition Orange EcoBoost Mustang!

The entire installation process took about 2 hours – not bad. Especially when you know your turbocharged 4-cylinder engine won’t overheat with this oil cooler as it pumps out over 300 horsepower. This Mishimoto 2015 EcoBoost Oil Cooler is a direct fit, which makes installation a breeze.

Mishimoto offers their oil cooler in either silver or black and they also give you the option to choose between a billet aluminum oil sandwich plate or thermostatic oil sandwich plate. For our installation, we went with the silver oil cooler and the thermostatic oil sandwich plate since we wanted a faster warmup at startup.

mishimoto package

All of the parts needed for the installation were included:

  • 3 Application-Specific Mounting Brackets and Spacer
  • 19-Row Oil Cooler
  • 4′ 3.5″ Stainless Steel Braided Hose with 45° and 120° – 10AN Fittings
  • Oil Sandwich Plate
  • 3/4″ x 16 Stainless Steel Sandwich Plate Adapter
  • 2 M20 x -10AN Straight Fittings
  • Mounting Hardware Set

First we lifted our 2015 EcoBoost so we could remove the undertray. After that was completed, we used a flathead screwdriver to remove the eight pop clips that fastened the plastic air diversion cover.

mishimoto bumperImage of the front bumper hardware removed.

The third stage in this installation process was removing the front bumper. This stage consists of removing the front bumper hardware which are four pop clips, six 8mm screws and two 7mm bolts that are near each headlight behind the fender liner; and unclipping the bumper and six wire harnesses for the turn signals, headlights, and fog lights from the vehicle.

mishimoto wiresImage of the turn signals, headlights, and fog lights wire harnesses being detached.

Next we removed the air dam, the air shutter arm and all other connectors that connect to the air shutter motor and the ambient temperature sensor. We also removed the lower grill shutters as well as the arm that attaches the lower shutters to the upper shutters. This gives us the room we need to install the Mishimoto 2015 EcoBoost Oil Cooler.

mishimoto air damBefore we removed the air shutter arm.

mishimoto air shutterAfter we removed the air shutter arm.

We then removed our oil filter so that the Mishimoto sandwich plate can attach in place by using the 3/4″ x 16 Stainless Steel adapter.

EcoBoost Oil FilterThe 2015 EcoBoost oil filter before being removed.

To avoid any unwanted friction, we lubricated the O-ring on the sandwich plate before fastening it in. Once the sandwich plate and straight fittings are all fastened and secured, we attached the stainless steel braided fittings with the 120 degree fittings connected to the sandwich plate.

mishimoto sandwichMishimoto oil line fittings and sandwich plate before the oil filter is reattached.

We then lubricated the O-ring and reinstalled the oil filter. Next we snaked the oil lines so that they were next to the steering rack. The shorter oil line with the 45 degree fitting was routed into place first since it was the first to be attached to the oil cooler.

We detached the front support bars in order to attach the oil cooler with its application-specific mounting brackets.

mishimoto-8Bottom application-specific mounting bracket.

mishimoto-9One of the two top application-specific mounting brackets.

After the oil cooler was mounted, we attached the 45 degree fitting and the longer hose with the 90 degree fitting to the oil cooler. We then started reattaching all of the parts we removed during the install!

mishimoto installedThe 2015 EcoBoost with the air damn and air shutter arm reattached after installing the Mishimoto oil cooler.

After our 2 hour installation, we couldn’t wait to test it out on the road and track. The Mishimoto 2015 EcoBoost Oil Cooler reduced our oil temperatures by up to 35+°F. The oil cooler receives the most airflow by being mounted at the front of the vehicle which cools the engine’s oil faster and more efficiently, which is always a good thing with a forced induction setup.

2015 EcoBoost at SebringSteeda’s 2015 EcoBoost Mustang with the Mishimoto 2015 EcoBoost Oil Cooler at Sebring International Raceway during the last weekend in May.

If you want to pick-up a Mishimoto Mustang Oil Cooler Kit for your 2015 EcoBoost Mustang, click here.

To make installation of this oil cooler even easier, Mishimoto has produced a detailed installation video for this 2015 EcoBoost Oil Cooler. You can check it out below!

If you have any questions or concerns, the Steeda sales team is always available to assist.

Steeda – Speed Matters

Stop The Hop With Steeda’s 2015 Mustang Differential Bushing Inserts

Here at Steeda, we’ve been hard at work developing new upgrades for your S550, and we’re really excited about our two innovative differential bushing inserts!

Let’s first introduce the Adjustable Urethane Differential Bushing Insert System! When our engineers sat down to design this kit, we had to come up with a way to increase performance without sacrificing an ounce of drivability, all while keeping the car quiet.

Unlike our competitors’ kits that will absolutely increase NVH (noise, vibration, harshness), take 3-4 hours to install and force you to permanently modify the rear IRS suspension with a sawzall, Steeda’s does not! Our kit installs in under 1 hour, adds ZERO increase in NVH, is adjustable and can be easily removed – it simply doesn’t get any better than this!

Minimize pinion angle changes, increase traction, eliminate wheel hop and differential deflection with Steeda’s new kit. Made from high-strength urethane to our exact specifications and durometers, our kit comes with 2 different bushing options – red ‘street’ 80 durometer bushings and our black ‘performance’ 90 durometer bushings. Both bushing options will increase performance with no increase in NVH, a Steeda-exclusive.

Steeda’s kit adds the strength and support the OEM bushings need to perform the way our customers intended. Once again, this is not a permanent modification – there is no drilling, cutting or pressing required. Simply loosen and remove a couple bolts and this kit installs in less than 1 hour. Bushings are included for both the front and rear differential mounting locations in addition to grade 10.9 hardware with zinc-plated washers.

steeda differential bushing inserts - urethane Steeda S550 Mustang Adjustable Differential Bushing Insert System – Urethane (2015 All)

We also knew we needed a kit for the hardcore racers out there! So our Aluminum Race Differential Bushing Insert System is made in-house from billet 6061 aluminum, this is not a permanent modification – there is no drilling, cutting or pressing required. Simply loosen and remove a couple bolts and this kit installs in less than 1 hour. Aluminum bushings are included for both the front and rear differential mounting locations in addition to grade 10.9 hardware with zinc-plated washers.

Please note: This is a race-only part. It will increase NVH and gear noise.

Aluminum Race Differential Bushing Inserts Steeda S550 Mustang Race Differential Bushing Insert System – Aluminum (2015 All)

For those of you that would like a complete one-stop shop street to full race kit which provides interchangeability options for both urethane and aluminum bushing inserts, we have the perfect combo kit. For the small amount more the Steeda kit will cost you, you will be saving so much more on labor (over 3 hours) when comparing to competitors’ kits. Here’s a link to our combo kit 555-4442.

Steeda S550 Mustang Differential Bushing Insert System - Street to Full Race Combo Kit (2015 All) Steeda S550 Mustang Differential Bushing Insert System – Street to Full Race Combo Kit (2015 All)

Check out our comparison video where we put our Steeda S550 Mustang Differential Bushing Insert Systems to the test:

You can purchase the Steeda S550 Mustang Adjustable Differential Bushing Insert System – Urethane (2015 All) by clicking here.

Or you can purchase the Steeda S550 Mustang Adjustable Differential Bushing Insert System – Aluminum (2015 All) by clicking here.

If you want the complete Steeda S550 Mustang Differential Bushing Insert System – Street to Full Race Combo Kit (2015 All), then click here.

Here at Steeda, we welcome competition. Why? Because it continually pushes us to be better and ultimately provide the best end-product for you our customers.

Our Steeda sales team is always glad to assist you with any questions that you may have.

Steeda – Speed Matters

Steeda’s Focus ST Shifter Bracket Review

Finding a quality and reliable short throw shifter can be difficult and frustrating, especially when all of these “trial and error” shifters are causing damage to your ride. Well, consider your search over, has done an extensive review on the quality and installation of Steeda’s Focus ST shifter bracket.

If you’re wanting to throw shorter, but are uncertain about quality, reliability and overall function, then Steeda’s short throw shifters and shifter brackets are the way to go for your Ford Focus, Mustang, Fusion or Fiesta. Need a second opinion? Head on over to’s blog post and read for yourself.

Link to blog post:

Steeda Short Throw Shifter Bracket

You can visibly see the difference between the stock shifter and the Steeda Focus ST shifter as outlined in the image above. With Steeda’s Focus ST short throw shifter bracket you’re certain to get your money’s worth with easier, shorter throws, premium quality materials and American-made craftsmanship.

Check out the links below to go to your vehicle’s specific short-throw shifters/brackets!

Steeda Focus ST Short Throw Shifter (13-14)

Steeda Focus Short Throw Shifter (12-14)

Steeda Focus ST Short Throw Shifter Bracket (13-14)

Steeda Mustang Short Throw Shifters

Steeda Fiesta Short Throw Shifter (11-14)

Steeda Fusion Short Throw Shifter Bracket (06-09)

As always, Steeda’s sales team is available to answer any of your questions and guide you in equipping your car with the best shifting experience possible!

Steeda – Speed Matters

Take Your 2015 Mustang’s Look To The Next Level

You’re sitting in your new 2015 Mustang thinking about all the modifications you want to start so that your pony will be the best on the street. And while we’re hard at work designing new parts, we’ve also been on the prowl for the best dress-up and body kits that will make your ride look as good as it sounds.

We’ve manufactured our own parts such as the 2015 hood strut kit, front splitter and pedal kits which give you superior functionality in addition to upgraded style. As always, our parts are manufactured right here in the USA, so you know you’re getting the highest-grade materials.

2015 Steeda S550 Front Splitter
Above, Steeda’s 2015 S550 Front Splitter – Street (2015 GT w/PP chin) click here.

We’ve also added some new companies to our site, and their parts are definitely worth checking out! Add race inspired front splitters from APR Performance to your Mustang GT or EcoBoost for a sleek design and increased traction.

It’s all in the tiny details when taking your 2015 Mustang from looking great to just downright jaw-dropping. You can successfully enhance these tiny details such as fuel doors, louvers and upper rear spoilers from DefenderWorx. Sticking to a track-inspired style, DefenderWorx has manufactured dress-up parts that step up your vehicle’s overall look while simultaneously being headache-free in the installation process.

DefenderWorx Mustang Pony Yellow Logo Fuel Door
Above, DefenderWorx Mustang Pony Yellow Logo Fuel Door – Black (2015 All) click here.

Have a convertible? Check out Classic Design Concepts new lightbar for the 2015 Mustang! You get that race-ready style everyone loves as well as some extra features that add to safety and chassis stiffening. Such features like an integrated interior dome light and extra brake light.

Our search for new dress-up and body kits will never be complete, but we just want to update you on some awesome products that we’ve recently added to our site.

Link to all of our 2015 Body Kits:

Link to all of our 2015 Dress-Up:

If you have any questions about the parts or need help customizing your order, Steeda’s sales team is here to help!

Steeda – Speed Matters

Steeda’s All New 2015 S550 Mustang Bumpsteer Kit

If you have substantially lowered your vehicle, chances are you have introduced bumpsteer. What is bumpsteer? Bumpsteer relates to changes in toe caused by suspension movement.

Every car has bumpsteer, however when you lower the vehicle you increase the amount of bumpsteer that occurs – if this becomes excessive you will begin to notice some unwanted vehicle driving characteristics.

Excessive bumpsteer is undesirable because it means the suspension is steering the car instead of the driver. If your car is lowered and has tracking issues and less predictable steering behavior, you need a bumpsteer kit!

You shouldn’t have to sacrifice your steering when you lower your vehicle, so at Steeda we’ve designed bumpsteer kits that will allow you to correct your suspension’s geometry and can do so without requiring you to drill or modify your vehicle spindle. In addition, our bumpsteer kit makes a great service replacement for your worn out, high mileage outer tie rods even if you do not have excessive bumpsteer issues.

Check out our installation video featuring our newly designed 2015 S550 kit:

If you want to refresh your outer tie rods and improve your steering, you can purchase our 2015 Bumpsteer Kit here:

Don’t have a 2015 Mustang? No problem, check out our 05-14 Mustang Bumpsteer install video instead!

You can purchase our 05-14 Mustang Bumpsteer Kit here:

As always, all of Steeda’s products are manufactured right here in the USA, so you know you’re getting the best quality materials and superior engineering!

Feel free to contact any member of Steeda’s sales team if you have any questions!

Steeda – Speed Matters

Wheel Hop Solution: Steeda S550 IRS Subframe Bushing Support System (GT, V6, EcoBoost)

We’ve been extremely busy with product development over here at Steeda – our main focus has been a turn-key wheel hop/IRS subframe solution for the S550 and we hit the nail on the head with our IRS Subframe Bushing Support System!

Made from CNC machined, 6061 aluminum, our bushing support system gives the rear end a much more solid feel with no increase in NVH at all. The Steeda IRS subframe bushings eliminate rear subframe movement notorious in the 2015 Mustang GT, EcoBoost, and V6. A stiffened subframe allows the car to increase traction to the rear wheels and helps eliminate wheel hop.

Our Steeda IRS Subframe Bushing Support System (Part #: 555-4437) is very easy to install with basic hand tools and does not require any permanent modifications to the car.

Steeda Kit Pros:
- Helps reduce wheel hop by eliminating subframe movement, therefore giving you much better rear suspension compliance
- No permanent modifications are necessary
- Easy, 30 minute installation, can be done on jack stands in the garage
- Our kit doesn’t increase NVH at all
- Can be removed or installed in less than 30 minutes
- Completely eliminates over ½” of travel in the factory IRS subframe
- Doesn’t require a rear end alignment
- Lifetime warranty
- Track-tested at the drag strip and the road course – we are not just straight line people

Competitors’ Kit Cons:
- They make you replace the factory bushings completely with urethane or solid aluminum
- A complete removal of the IRS subframe is required; this not only takes several hours, but it’s not the easiest job for a ‘do it yourselfer’
- Other kits will increase NVH if using solid aluminum bushings or very hard urethane
- Takes hours for installation
- Although other kits may reduce wheel hop, an increase in NVH is not desirable
- You will need to re-align your car if you replace the bushings that locate the rear subframe
- No bushings carry a lifetime warranty, they will fail eventually

We’ve attached some product photos for reference – also, this kit is readily available! Steeda’s IRS Subframe Bushing Support system greatly reduces wheel hop while virtually eliminating all IRS subframe movement. When these pieces are used in conjunction with our other Steeda rear suspension components, wheel hop and subframe movement is eliminated – stay tuned as these additional rear suspension pieces will be available in the next couple of weeks.

Again, this is not a permanent modification! It can be put back to stock in under an hour as it’s very easy to install.

Before and After comparison:


Steeda S550 IRS Subframe Bushing Support System
Steeda S550 IRS Subframe Bushing Support System
Steeda S550 IRS Subframe Bushing Support System
Steeda S550 IRS Subframe Bushing Support System
Steeda S550 IRS Subframe Bushing Support System
Steeda S550 IRS Subframe Bushing Support System
Steeda S550 IRS Subframe Bushing Support System
Steeda S550 IRS Subframe Bushing Support System

Why IRS subframe movement must be eliminated…

As you can see in the video, when completely stock, the entire rear IRS subframe assembly moves around under acceleration, braking and even more so when bangin’ gears. This is a major problem because every single rear suspension piece is connected to this subframe. So as it’s moving and vibrating, so is the rear sway bar, toe links, integral links, camber arm and lower control arm. They are all moving around violently as well so it makes it very hard for your suspension to ‘work’ and keep the tires planted on the pavement for traction. The assembly is basically fighting the car and not allowing for the suspension to work the way it was designed. This causes unwanted changes in camber and toe which will lead to unpredictable traction and control, resulting in handling issues. Steeda’s simple kit eliminates this. PERIOD.

Steeda – Speed Matters

Steeda’s 2011-2015 MT-82 Transmission Mount Bushing Insert!

Steeda’s MT-82 Transmission Mount Bushing Insert is a must for any weekend road racer. Our Transmission Mount Bushing helps reduce transmission movement, assisting in keeping the shifter aligned with the transmission, all while reducing any chance of missed shifts. Also, it is easily able to be removed and reinstalled on track days!

This upgrade is an easy install and provides huge benefits! Just watch our video for a step by step installation:

Don’t just take our word for it, here are a few customer reviews:

“Bought this on an impulse and am definitely glad that I did. Wasn’t really experiencing inconsistent shifting very often, but I can definitely tell an improvement in shifting post-install.”

“Install was straightforward (even moreso thanks to the video) and shifting has definitely improved. Shifts feel more direct! Shipping was fast too, thanks Steeda.”

So if you want to reduce any chance of missed shifts and take advantage of an overall better alignment between your shifter and transmission, then don’t hesitate to upgrade!

As always, our Steeda sales team is here to answer any questions you may have!

Steeda – Speed Matters