Rally Innovations Side Skirt Splitter Rally 1 Aluminum Matte Black Pair V6/EcoBoost/GT 2015-2021

Rally Innovations:
100% of 100


  • Aluminum Construction
  • Direct Fit
  • Matte Black Powder Coat
  • Made In The USA

Pair of Rally Innovations Matte Black Rally 1 Aluminum Side Skirt Splitters for all 2015, 2016, 2017, 2018, 2019, 2020 and 2021 V6, EcoBoost and GT Mustangs.

Give your 2015-2021 V6, EcoBoost or GT Mustang some race-inspired styling with this Pair of Matte Black Rally 1 Aluminum Side Skirt Splitters FO-P8T-SPL-01 from Rally Innovations, now available to purchase here at CJ Pony Parts! These side skirt splitters will give your S550 a bold, aggressive stance!

Features and Benefits:
- Sold as a Pair for Driver and Passenger Side
- Made from Rally 1 Product Line
- Constructed of Durable 11-Gauge Aluminum
- Protective Matte Black Powder-Coated Finish
- Quick and Easy Bolt-on Installation
- All Necessary Hardware is Included
- Proudly Made in the USA
- Fits 2015-2021 V6, EcoBoost and GT Mustangs

This pair of side skirt splitters will complete your S550's driver and passenger side. Rally Innovations' splitters are manufactured in the USA from durable aluminum before being given a protective matte black powder-coated finish. All of the required hardware is supplied for a simple bolt-on installation!

Please Note: These side skirt splitters are not designed to be used on the GT350 or GT350R Mustang.

Rally Innovations has over a decade in the rally car industry and is proud to bring their high-quality auto body products to your Ford performance vehicle! Each and every one of their products is cleanly designed, well-engineered, and durable yet functional, meaning that your Focus ST will still have that legendary performance while having a more customized, aggressive look. CJ Pony Parts is proud to offer Rally Innovations products for your favorite Ford vehicle--browse our selection today!

California Residents: Proposition 65 Warning

Installation Difficulty


Novice skill is required for this installation.

Installation Videos

Video Transcript

Today we're gonna finish off the Rally Innovations look on my 2018 Mustang GT by installing their custom side splitters.

These custom side splitters from Rally Innovations is gonna fit your 2015 through 2018 Mustang with the exception of the GT350 and 350R. They're made of 11 gauge aluminum with a black powder coat and not really an aggressive look to your Mustang but a very simple bolt on installation.

For this installation a lift or a jack and jack stands, 3/16th Allen key, half inch wrench, clip removal tool, tape measure, marker, drill, 3/8th drill bit and safety glasses.

The Rally Innovation side script is gonna attach to our factory pieces here. So the first thing you're gonna do is remove all these little push pin plastic clips in here, give us more room to work.

What we're gonna do here, get the side splitter up into place. Now if you look in the back, there's a cutout to go around this bracket. What you wanna do is figure out basically line this edge up with a back edge of the factory rocker, pull it about an inch away. They can go as narrow wide as you want but about an inch will get you right where you kinda wanna be. We're straight back here, pinch there. Do now is mark first hole, slide this carefully away so we can drill it out.

With one hole drilled, grab the side splitter, put the washer then the lock washer then the nut. Get it as tight as you can by hand now. Okay with one in now we can pivot it. Again we're gonna line it up, an inch out and mark it.

Now we'll drill the next two out.

All right once you have all the holes drilled we're gonna go back through, tighten all the hardware.

With everything tightened down, grab the original push pins, put 'em back into place. Give 'em a little bump with the back of the screwdriver, make sure they're seeded all the way.

Once you get them all in, gonna repeat the process on the other side and your installation's finished.

To be perfectly honest, I wasn't sure I was gonna like the side splitters. I like the front, I like the rear, but I wasn't sure I was gonna dig the sides but now that I installed 'em, I'm very glad that I did so it really ties everything together and gives it almost like a complete package sort of look. Now as far as the installation goes for the sides, I'm gonna say about an hour and a half to two hours, be back on the road in no time.

Hey guys, hope you enjoyed that video. Make sure you click on the CJ button so you subscribe for future videos and click the corner up here for more videos for your Mustang.

Vehicle Fitment

This product will fit the following Mustang years:

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