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Magnaflow Competition Series Cat-Back Exhaust with Polished Quad Tips (15-20 GT350)

Item 390659
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Market Price $2,063.99 You Save 12% ($237.61)
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      Product Information

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


      • Truly Aggressive Muscle Car Sound
      • Improves Exhaust Flow for More Power and Sound
      • Compatible with Factory Multi-mode Exhaust
      • Straight-Through Competition Mufflers
      • Free Flowing X-Pipe Included
      • Durable 409 Stainless Steel Construction
      • 3" Mandrel-Bent Tubing - Steps Up From 2.5"
      • Mirror Polished, Dual 4" Stainless Steel Tips
      • Direct Bolt-on Replacement
      • Fits 2015-2020 Shelby GT350 Mustangs


      Aggressive Muscle Car Sound. If the Shelby GT350 and GT350R Mustangs with their driver selectable multi-mode exhausts weren't loud even for you already, you can now wake your neighbors and the dead by installing a Magnaflow Competition Cat-Back Exhaust System. This Magnaflow Competition Cat-Back features a pair of straight through mufflers and a free flowing x-pipe to uncork all the aggressive sound that the GT350's flat-plane-crank 5.2-liter Voodoo engine has to offer.

      More Power and Better Performance. A Magnaflow Competition Cat-Back Exhaust not only improves the sound of your Shelby GT350's exhaust, but also improves its power and performance as well. By reducing back pressure and improving exhaust flow, you will see impressive gains in rear wheel horse power and torque.

      Compatible with Factory Multi-mode Exhaust. One of the cool features of the Shelby GT350 is the multi-mode exhaust that allows the driver to select between normal and sport modes. Knowing that this was one feature that GT350 owners could not do without, Magnaflow manufactures their mufflers with the same butterfly valves as Ford. When closed the valve blocks the exhaust flow, forcing it out one tip of the muffler to produce a more street friendly sound. When opened the valve "uncorks" the exhaust flow allowing it to exit through both tips of the muffler to produce an aggressive, throaty race style exhaust note. This Magnaflow Cat-Back reuses the factory valve motors.

      Magnaflow Quality. Magnaflow manufactures their Cat-Back Exhaust systems right here in the USA with pride. Magnaflow Competition Cat-Back's are mandrel-bent from 3" diameter, premium grade, 409 stainless steel tubing for outstanding exhaust flow and enduring corrosion resistance. This system includes an X-Pipe and two high flow, straight-through Competition mufflers. The mufflers feature a pair of mirror polished dual 4" tips that replace the faux factory tips located in the rear valance.

      Direct Bolt-on Upgrade. Magnaflow's Competition Cat-Back Exhaust with X-Pipe bolts straight up in the stock location with no cutting or extra modifications required. Installation of this Magnaflow Cat-Back can be completed in about two hours with just basic hand tools.

      Application. This Magnaflow Competition Cat-Back Exhaust with X-Pipe is designed to fit the 2015-2020 Shelby GT350 and GT350R Mustangs equipped with the Voodoo 5.2L V8 engine. Will not fit GT models.

      Note: Coupon codes cannot be applied to this product.

      Fitment: 2015 2016 2017 2018 2019 2020 Details

      Magnaflow 19283

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Right Muffler Assembly
      • (1) Left Muffler Assembly
      • (1) Right Over Axle Intermediate Pipe
      • (1) Left Over Axle Intermediate Pipe
      • (1) X Pipe Assembly
      • (4) Clamps

      Tech Specs

      Cat-Back Exhaust Specifications
      Piping Material:409 Stainless Steel Tip Material :Polished 409 Stainless Steel
      Piping Size:3"Tip Size:Dual 4"
      Muffler Type:Straight-throughFitment:2015-2017 GT350, GT350R

      Customer Reviews (2)

        Reviews of Magnaflow Exhaust products have an average rating of 4.7 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Mustang

          • GT350 - 15, 16, 17, 18, 19, 20
          • GT350R - 15, 16, 17, 18, 19, 20

          Fits both GT350 and GT350R models

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