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

Market Price $948.99 You Save 10% ($99.00)
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$849.99

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  • Item 389202
  • MPN# SFM83MHB

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Features & Details

  • Deep, Rich Sound with No Drone
  • Improves Exhaust Flow for More Power
  • M-80 Bullet Style Mufflers
  • H-Box Mid Pipe Included
  • Durable 304 Stainless Steel Construction
  • 3" Diameter Mandrel-Bent Tubing
  • Phantom Series - 4" Black Finished 304 Stainless Steel Tips
  • Fits 2015-2017 GT Fastback Mustangs with Aftermarket Headers and a 3" Connection Mid Pipe
Rich Muscle Car Sound. Add a deep rich muscle car exhaust note to your coyote powered S550 Mustang with a Pypes Phantom Series Cat-Back Exhaust. Employing a pair of M80 bullet mufflers and their very own H-Box mid pipe, this Pypes Cat-Back will create a powerful sound without any annoying interior drone. This Pypes Phantom Series 3" Cat-Back Exhaust is designed specifically for those GT owners that are installing a set of aftermarket headers that use 3" connection mid pipes 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 H-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.

H-Box Mid-Pipe. Designed to eliminate the restrictive factory resonator the H-Box Mid Pipe improves exhaust flow when compared to traditional H and X mid pipes. The combination of the H-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 black finished 304 stainless steel 4" tips, this Phantom Series Cat-Back adds an aggressive muscle car appearance to your Mustang.

Direct Fit Upgrade. Pypes Mustang Cat-Back with H-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 Phantom Series 3" Cat-Back Exhaust System with H-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) H-Box Mid-pipe With Mufflers
  • (2) Over Axle Pipes
  • (2) Axle-back Pipes
  • (2) Exhaust Tips
  • (8) Clamps
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: 304 Stainless Steel Tip Material : Black Finish 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

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Customer Reviews (1) Write a Review

Overall Rating 4.0

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4 4
  • Exhaust Note 5 5
  • Fit & Finish 5 5
  • Bang For Your Buck 4 4



  • 4/5

    Installation Time: Afternoon

    May 24, 2017

    Old School Rumble

    Excellent classic musclecar sound from the H-Box and glasspack style mufflers. Only complaint I have is that there is a little drone at cruising speed.

    Srouxd162

    Year: 2016 Submodel: GT

    Helpful (0)

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