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Flowmaster Off-Road X-Pipe - Stainless Steel (05-10 GT)

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  • Item #18470
  • MPN# 81066

  • Market Price $395.99
  • You Save 77% ($306.81)
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  • Improves Exhaust Flow and Sound
  • Raspy Race Car Growl
  • For Use with Flowmaster Long Tube Headers
  • For Off-Road, Track Use
  • 2.5" Mandrel Bent Aluminized Tubing
  • Fits 2005-2010 GT and Bullitt
Improves Flow For More Power. Add even more horsepower and torque to the rear wheels of your GT by eliminating those power robbing catalytic converters with a Flowmaster Off-road shorty X pipe. A Flowmaster X pipe in combination with their full length headers will greatly improve your exhaust flow to increase your Mustang's overall performance.

Race Car Growl. This free flowing Flowmaster x-pipe for the 2005 to 2010 Mustang's not only increases power, but it also adds a crisp raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.

Quality Construction. Constructed in the USA from durable 2.5" 16 gauge 409 stainless steel tubing for it's corrosion resistant properties this Flowmaster mid-pipe features a merged X crossover to improve exhaust flow.

Application. This Flowmaster Shorty Off-road X-Pipe is specifically designed to fit the 2005-2010 GT and 2008-2009 Bullitt Mustangs with Flowmaster Long-Tube Headers installed. Intended for off-road use, does not include catalytic converters.

Fitment: 2005 2006 2007 2008 2009 2010 Details

What's in the Box
  • (1) Off-road X-pipe
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Shorty "X" Type Headers Required: Flowmaster Long Tube
Piping Material: Stainless Steel Piping Size: 2.5"
Catalytic Converter: "No" - For off-road use only Fitment: 2005-2010 GT and Bullitt Mustangs
Will it fit my Mustang?
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09, 10

Customer Photos

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Q & A

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Is that going to fit immediately if I have flowmaster exhaust? Btw i have flowmaster Item #18427 ?

mejo Year: 2007 Model: GT

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Full Day

  • Loudness / Volume 5 5
  • Exhaust Note 5 5
  • Fit & Finish 5 5
  • Bang For Your Buck 5 5

  • 5/5

    Installation Time: Full Day

    July 01, 2015


    Installed with my Flowmaster long tube headers and wow! Car sound amazing with stock mufflers in place. There is quite a bit of Rasp but I guess that is always a risk when you remove the Cats. I hope that by matching the setup with a nice race muffler I can cut down on rasp while keeping her roar!

    Top 500 Contributor


    Year: 2005 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Key Biscayne, Florida

    Helpful (1) (0)

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