Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P

Stainless Power 1-7/8-Inch Long Tube Headers with X-Pipe; Performance Connect (11-14 GT)

Item 390794
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $1,679.49 You Save 12% ($193.21)
Our Price


FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Product Information

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


      • Increases Horsepower and Torque
      • Raspy Race Car Growl
      • Long Tube Header Design
      • Free Flowing 1-7/8" Primary Tubes
      • Stainless Steel Construction
      • 3in. X-Pipe Included, Catted or Off-Road
      • Performance Connect
      • Designed and Manufactured in the USA
      • Fits 2011-2014 GT Mustangs


      More Horsepower And Torque. Improve the performance of your Mustang throughout the entire RPM range with a Stainless Works Long Tube Headers Performance Connect with an X-Pipe. This system will replace the factory manifolds, catalytic converters and H-Pipe to give your ride an awesome, bolt on upgrade. Stainless Works Headers and X-Pipe will greatly improve your Mustang's exhaust flow over the restrictive stock manifolds and Mid Pipe to significantly increase your Pony's horsepower and torque.

      Superior Construction. Manufactured in the USA from 1-7/8" mandrel bent 304 stainless steel tubing for superior airflow, Stainless Works Long Tube Exhaust Headers are TIG welded and feature a one piece 3/8" thick header flange for added strength and optimal leak-free performance.

      Race Car Growl. The included Stainless Works 3" diameter 304 stainless steel X-Pipe not only improves exhaust flow to increase power, but it also adds a crisp raspy, race car growl to the sound of your Mustangs exhaust with its modern merged "X" crossover design.

      Application. This Stainless Works Long Tube Header Performance Connect and X-Pipe combo is specifically designed to fit the 2011 to 2014 GT Mustangs. Please choose Catted or Off-Road from the options above.

      Fitment: 2011 2012 2013 2014 Details

      Stainless Power SM12HCATX

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • Long Tube Headers
      • X-Pipe

      Tech Specs

      Header Specifications
      Header Type:Long TubeFinish:Natural
      Type Mid Pipe Required:IncludedFitment:2011-2014 GT Mustangs

      Mid Pipe Specifications
      Style Mid Pipe:  "X"Type Headers Required:Long Tube - Included
      Piping Material:Stainless SteelPiping Size:3"
      Catalytic Converter: Replaces FactoryFitment:2011-2014 GT Mustangs

      Customer Reviews (2)

        Reviews of Stainless Power Exhaust products have an average rating of 4.9 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Mustang

              Related Mustang Categories