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RTR Side Splitters (10-14 All)

Item 387404
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      Review & Installation Video

      Equipment and supplies required: isopropyl alcohol, pliers, drill, quarter-inch drill bit, Phillips screw driver, soft lint-free cloth, electrical tape. With an assistant, hold the left rocker splitter in position and visually know where the foam tape is to adhere to the factory Rocker Panel Molding. Remove the rocker splitter. Clean the noted area and apply the 3M Adhesion Promoter to the factory Rocker Panel Molding. Using a pair of pliers, reach into the Rocker Panel Molding pockets as shown and pull the eight push pins from the left side of the Rocker Panel Molding and discard. The Rocker Panel Molding will remain in place with the upper fasteners retaining it to the body. Prepare the rocker splitter for installation by bending, increasing the tape pull tabs. Do not expose or touch the foam tape. Loosely install the left side rocker splitter and eight new push pins. Ensure that the foam tape pull tabs are accessible. Press the push pins in leaving an eighth-inch to quarter-inch gap. Starting at the front and ensuring that the factory Rocker Panel Molding is nested into the recess feature in the rocker splitter, fully insert the eight push pins. The handle of the screw driver works well to fully press the push pins in. Pull the four-tape pull tabs to remove the tape backing. Press the left side rocker splitter into place. Apply firm pressure at three to four-inch intervals along the entire length of the rocker splitter to ensure a strong bond. Using the installed left side rocker splitter as a template, drill five quarter-inch holes into the factory Rocker Panel Molding. Lay several wraps of electrical tape one inch from the tip of the drill bit to act as a drill stop. Install a new push pin into each of the five drilled holes.

      Product Information

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


      • RTR Signature Modern Aggressive Styling
      • Thermo-Formed TPO Material
      • Features a Grained Texture
      • OEM Fit and Finish
      • Easily Installs with 3M Automotive Tape
      • Fits All 2010-2014 Mustangs


      Ready To Rock! Add the same exact Side Rocker Panel Splitters that were included as original equipment on the Ford Mustang RTR designed and developed by Vaughn Gittin Jr. on your very own modern muscle car for a modern aggressive race inspired styling.

      Quality Construction. Manufactured from OEM quality high pressure injection molded high-strength thermal plastic olefin (TPO) for it's long lasting durability, these rocker panel splitters feature a grained texture for an OEM look and to increase longevity against rock impacts from daily driving.

      Application. These RTR Side Rocker Panel Splitters are designed to fit all 2010 to 2014 Ford Mustangs including the V6, GT, BOSS and Shelby GT500 models. Driver and passenger side included.


      Fitment: 2010 2011 2012 2013 2014 Details

      MPN# 1011-7000-01

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (14)

      Write a Review

      Ratings Summary

      4.6 out of 5 overall rating from 14 customers

      Installation Time: Afternoon

      • December 17, 2019

        1 2010 GT - AntonioA Installation Time: Less than 1 Hour

        2010 Mustang rtr side splitters

        Easy to install and made a big difference in the stance of the car.

        Helpful (0)
      • October 05, 2019

        5 2014 GT500 - JohnnyGT10

        Easy install great product

        East install if you wan Cu the directions for the item. No directions are given in the box . Cut the back of 3M tape lightly to break the back cover and peel to expose it(opposite the red tape side. Directions on how to remove that peel are sketchy

        Helpful (0)
      • September 22, 2019

        5 2010 GT - JulioC Installation Time: Afternoon

        New side splitters

        Every single part I buy on american muscle Gives a better look This time I bought the side splitters and I really like IT my car looks lowered

        Helpful (0)
      • September 28, 2018

        5 2011 GT - Spotrox Installation Time: Less than 1 Hour

        Roush side splitters

        Very easy too install, did it by myself. The directions were very easy too follow, I really enjoy the look on my 11 GT!

        Helpful (1)
      • August 21, 2018

        4 2014 GT - JeremyW Installation Time: Less than 1 Hour

        Nice fit

        Nice product with a good finish. Was shorted on the 3M tape. When I called and told them they were not too concerned

        Helpful (2)
      • March 30, 2018

        5 2014 GT - DannyD Installation Time: Shop Install

        Awesome addition

        Really looks like OEM. Quality parts as usual and superfast delivery.

        Helpful (3)
      • March 19, 2018

        5 2011 GT500 - ManinderS Installation Time: Less than 1 Hour

        love it easy

        nice look easy to install change look of my car feel kind low

        Helpful (4)
      • November 15, 2017

        5 2012 GT - StephenJ Installation Time: Less than 1 Hour

        easy and looks great

        install took no time, just jack the car up and put the tape on and push in the pushpins. small and subtle mod but definitely adds a good look to the car, especially when paired with the rear splitters

        Helpful (6)
      • October 05, 2017

        5 2012 GT - ZacharyS Installation Time: Less than 1 Hour


        I put the RTR side splitter, chin spoiler, and rear diffuser on my 2012 mustang and it sure has turned some heads.It gives the appearance of the car being lowered and will also prevent air from going underneath your car. .

        Helpful (6)
      • July 14, 2017

        5 2013 GT500 - BarinderG


        They went on just as the instructions said. No hassle at all and the finished look is just fabulous.

        Helpful (6)

      Questions & Answers (7 answers)

      5 Top Rated Questions

      RTR, CDC, and Roush all have identical looking splitters on your site. Are there any notable differences? Width? Matte/gloss finish? Ease of mounting? How should one choose between them (as they are all the same price)?

      • The RTR, CDC, and Roush side splitters are all the same width with the same finish and manner of installation. The difference comes down to brand and warranty. While the CDC option has a limited lifetime warranty, neither the RTR or Roush option offers a warranty on the item.

      Helpful (2)

      Are these any lower to the ground than the stock panels?

      • The RTR Side Splitters will install below the OEM Rocker panels, lowering ground clearance by around 1/2" to 3/4"

      Helpful (1)

      is there any drilling involved

      • Yes, you will need to drill holes for the push pins to attach through.

      Helpful (1)

      What is the difference between these and the Roush side rocker panel splitters (69406)?

      • Nothing, buy the roush and save 37.00.

      Helpful (1)

      Will the RTR splitters fit the 05-09 like the CDC do?

      • These will not fit 05-09 models.

      Helpful (0)
      Post Your Question
      2 More Questions
      Are they paintable? 1 answer
      Would it be smarter to put these side splitters on when its warm or can i put these on when its cold (its 10°F in Illinois) thank you 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Driver side Rocker Panel Splitter
      • (1) Passenger side Rocker Panel Splitter
      • Hardware

      Tech Specs

      Will It Fit My Mustang

      • Boss 302 - 12, 13
      • GT - 10, 11, 12, 13, 14
      • GT500 - 10, 11, 12, 13, 14
      • V6 - 10, 11, 12, 13, 14