Rally Innovations Rear Side Splitter Rally 1 Aluminum Matte Black Pair EcoBoost/GT 2018-2021

Rally Innovations:
100% of 100


  • Aluminum Construction
  • Direct Fit
  • Matte Black Powder Coat
  • Made In The USA
MSRP $188.99
You save $9.00

Pair of Rally Innovations Matte Black Rally 1 Aluminum Rear Side Splitters for 2018, 2019, 2020 and 2021 EcoBoost and GT Mustangs.

Take your brand-new 2018-2021 GT or EcoBoost Mustang's exterior to the next level and install this Pair of Rally Innovations Matte Black Rally 1  Aluminum Rear Side Splitters FO-P8T-RSP-02, now available to order right here at CJ Pony Parts!

Features and Benefits:
- Direct-fit for 2018-2021 EcoBoost and GT Mustangs
- Pair of two (2) for the driver ans passenger sides
- Made from Rally 1 Product Line
- Constructed from premium 11-gauge aluminum
- Each piece features an aggressive matte black powder-coated finish
- Quick and easy bolt-on installation with all mounting hardware included
- Proudly made here in the USA

You'll absolutely love the way these brand-new side splitters look sitting on your new pony! The pair of two (2) splitters will fit onto the rear driver and passenger side of your GT or EcoBoost Mustang and will provide your vehicle with a sporty, more aggressive stance. Quick and easy to install, Rally Innovations includes all the necessary mounting hardware so it'll just take a few minutes to get everything mounted. Each of the splitters are crafted from Rally 1 premium aluminum and feature a high-quality matte black powder coat finish. Be sure to grab your new body kit from CJ's today!

Please Note: These side spliiters are NOT designed to be used on the Performance Pack 2 Option, GT350 or GT350R model Mustangs.

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 Mustang 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 Videos

Video Transcript

The Rally innovation splitter kit's been very popular with the S550 Mustangs and they're available for the 2018 as well. I already installed the front splitter on my car and today I'm gonna continue that theme by installing the rear splitters.

These Really Innovation rear splitters are made of 11 gauge aluminum with a black powder coat finish and fit your 2018 EcoBoost or GT except for the performance pack two. It can be a very easy installation and match up perfectly with the front and side splitters.

For this installation get a Lift of a Jack and Jack stands or ramps, three eighth ratchet, three sixteenth Allen key or Allen socket, half inch wrench, marker, clamps, drill, three eighth drill bit, and safety glasses.

Once you have your car up in the air to begin the installation, we're gonna start by removing these two pushpins. Now the next part is kind of a little bit open to interpretation. Basically, what you're gonna do is you're gonna grab the rear splitter and this corner here, line that up. They kind of basically line up on the inside edge as well. You wanna get it kind of right where you like the look of it. I'm gonna put some clamps on it just to make sure where I have it is where I want it. Once you have them where you want them, grab the marker and mark the holes, drill them out. We're gonna start with a little pilot hole in the middle. Right now we're gonna drill them out to three eights. Okay, now we're gonna put it up into place with the supplied hardware. If you'll put the bolt through and then washer, lock washer, and then the nut. Okay, now we're gonna tighten them down. Want them tight. Now we're gonna re install the plastic rivets. Gonna repeat the process on the other side and you're installation is finished.

The Rally Innovations rear splitter has added a really aggressive look to the back of my 2018 Mustang GT. Now you could run these by themselves. You can run 'em with just the front splitter or you can do the whole pack and just hide 'em with the slide splitters as well. As far as the installation goes, these are supper simple to do. Honestly 15, to 20 minutes. Be back on the road in no time.

Hey guys, hope you enjoyed that video. Make sure you click on the CJ button to subscribe to 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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