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Pypes 3 in. Connect Cat-Back Exhaust w/ X-Box Mid-Pipe - Polished Tips (15-17 GT Fastback)

Market Price $871.99 You Save 12% ($102.02)
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  • Item 389203
  • MPN# SFM83MX

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Features & Details

  • Deep, Rich Sound with No Drone
  • Improves Exhaust Flow for More Power
  • M-80 Bullet Style Mufflers
  • X-Box Mid Pipe Included
  • Durable 304 Stainless Steel Construction
  • 3" Diameter Mandrel-Bent Tubing
  • 4" Polished 304 Stainless Steel Tips
  • Fits 2015-2017 GT Fastback Mustangs with Aftermarket Headers and a 3" Connection Mid Pipe
Rich Muscle Car Sound. Let everyone know you have arrived on the scene by installing a Pypes Cat-Back Exhaust. This Cat-Back will add a deep muscle car note to the sound of your coyote powered Mustang's exhaust. Using a pair of M80 bullet mufflers and a X-Box mid pipe this Pypes Cat-Back creates its rich powerful sound without any unpleasant interior drone, so you can converse freely with passengers while tooling around town. Pypes designed their 3" Cat-Back Exhaust for those Mustang owners that are installing a set of aftermarket headers on their GT in order to create a full 3" exhaust system.

Better Flow for More Power. Pypes engineered their Cat-Back System to significantly improve the exhaust flow of your 2015-2017 5.0-liter Mustang. This Cat-Back replaces the restrictive factory 2.5" piping with larger diameter 3” mandrel bent piping, a pair of straight-through bullet mufflers and Pypes unique X-Box mid pipe. With these components in place you will see a noticeable increase in rear wheel horse power and torque.

M80 Bullet Mufflers. Pypes M80 Bullet Mufflers feature a high-flow straight-through design. Engineered with a layer of stainless mesh around a unique internally louvered core and a lining of basalt insulation, these M80 Mufflers will improve exhaust flow for more power and sound.

X-Box Mid-Pipe. Designed to eliminate the restrictive factory resonator the X-Box Mid Pipe improves exhaust flow when compared to traditional H and X mid pipes. The combination of the X-Box and the mid-muffler design helps accelerate the exiting exhaust to create significant rear wheel power gains.

Quality Construction. Pypes Cat-Back Exhausts are manufactured from high quality 304 stainless steel piping for strength and excellent corrosion resistance. All Pypes Exhaust Systems feature smooth mandrel bent tubing to eliminate any power robbing kinks. Complete with a set of brightly polished 304 stainless steel 4" tips, this Cat-Back also adds bold muscle car styling to your Mustang.

Direct Fit Upgrade. Pypes Mustang Cat-Back with X-Box Mid Pipe bolts straight up with no modifications required for installation. Making this Cat-Back a direct fit bolt-on replacement upgrade.

Application. This Pypes 3" Cat-Back Exhaust System with X-Box is specifically designed to fit the 2015-2017 GT Fastback Mustangs equipped with aftermarket headers using a 3" connection Mid Pipe. Not compatible with convertible models.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) X-Box Mid-pipe With Mufflers
  • (2) Over Axle Pipes
  • (2) Cat-Back Pipes
  • (2) Exhaust Tips
  • (8) Clamps
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: 304 Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 3" Tip Size: 4"
Muffler Type: Straight-through Fitment: 2015-2017 GT Fastback
Will it fit my Mustang?
  • GT - 15, 16, 17

Not compatible with Convertibles due to different bracing. This Cat-Back is for 15-17 GTs equipped with aftermarket headers that use 3" connection mid pipes.

Most Helpful Reviews

Good exhaust

Great and raspy had a good note bearly any drone my buddy has the same exhaust on his car

Helpful (1)

pypes w?xbox 3inch s550

X-BOX is LESS than 2.5 in. Very restrictive looking. After cutting that part off and with no cats, It sounds amazing!

Helpful (0)

Overall Rating 4.5 out of 5 stars
Read All 2 Reviews

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Customer Reviews (2) Write a Review

Overall Rating 4.5

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4.5 4.5
  • Exhaust Note 4 4
  • Fit & Finish 4 4
  • Bang For Your Buck 4 4

  • 5/5

    Installation Time: Afternoon

    May 29, 2017

    Good exhaust

    Great and raspy had a good note bearly any drone my buddy has the same exhaust on his car


    Year: 2015 Submodel: GT

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    June 15, 2017

    pypes w?xbox 3inch s550

    X-BOX is LESS than 2.5 in. Very restrictive looking. After cutting that part off and with no cats, It sounds amazing!


    Year: 2017 Submodel: GT

    Helpful (0)

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