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

Item 389198
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Market Price $909.99 You Save 12% ($106.31)
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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 (steps up from 2.5")
    • 4" Black Powder Coated 304 Stainless Steel Tips
    • Direct Fit Replacement Upgrade
    • Fits 2015-2017 GT Fastback Mustangs with Factory Manifolds
    Rich Muscle Car Sound. Give your 2015-2017 coyote Powered GT Mustang a deep rich muscle car sound with absolutely no resonance or drone by installing a Pypes Cat-Back Exhaust. This powerful sound is achieved with the help of a pair of M80 bullet mufflers and Pypes H-Box Mid Pipe that replaces the factory resonator.

    Better Flow for More Power. Pypes designed their Cat-Back to significantly improve the exhaust flow of your 2015-2017 5.0L Mustang. By replacing the 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 you will see a noticeable increase in rear wheel horsepower 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 powder coated 304 stainless steel 4" tips, this Cat-Back also adds aggressive muscle car styling to your Mustang.

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

    Application. This Black Tipped Pypes Cat-Back Exhaust System with H-Box Mid-Pipe and Black Tips is designed to fit the 2015-2017 GT Fastback Mustangs equipped with either aftermarket shorty headers or the stock manifolds reusing the factory catalytic converters. Not compatible with convertible models.

    Fitment: 2015 2016 2017 Details


    CA Residents: WARNING: Cancer and Reproductive Harm -

    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 Powder Coated 304 Stainless Steel
    Piping Size:3" (steps up from 2.5")Tip Size:4"
    Muffler Type:Straight-throughFitment: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 either aftermarket shorty headers or the stock manifolds reusing the factory catalytic converters.

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          Customer Reviews (3) Write a Review

          Overall Rating 4.3

          out of 5 stars

          Installation Time:Afternoon

          • Loudness / Volume 3 3
          • Exhaust Note 4.5 4.5
          • Fit & Finish 4 4
          • Bang For Your Buck 5 5

          • 4/5

            Installation Time: Afternoon

            November 25, 2018

            Excellent value!!!

            I decided to go with this setup because of the sound I got from listening to tons of videos. I really love the sound of the H-box set up. Compared to the X-pipe which I can't stand hearing due to that raspy sound. Anyway, I installed this a couple days ago and I love it. Installation was straight-forward. It's definitely louder than stock but not unbearable by any means. It gets loud when you get on the throttle and mellows out when cruising. I gave 4 of 5 stars because of the drone I get between 1500-2000 rpms in 6th gear which is around 65mph. To overcome, I just downshift to 5th gear and keep loving my Pypes.


            Year: 2015 Submodel: GT

            Helpful (7)

          • 4/5

            Installation Time: Afternoon

            August 14, 2017


            First off this is not a stupid loud exhaust it’s a, sounds really good exhaust. I love it. It doesn't give you that much weight loss only about 5 Lbs but there is ZERO! Drone! It sounds amazing and I get told everywhere I go that they like it. I literally had an Amish kid give me the thumbs up. Who can say they have had that happen?! The black tips really pulls the entire car together. It just makes this car sound like it should have. Now for the fitment was horrible, the hangers either where never bent right or they got messed up in shipping so that was…fun. I couldn't get the driver side tube to connect perfectly it was like the pipe was just a bit too short. Didn’t effect sound though.


            Year: 2017 Submodel: GT

            Helpful (15)

          • 5/5

            July 27, 2016




            Year: 2016 Submodel: GT

            Helpful (13)

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