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Product Information

The Borla Atak Cat-Back is a cat-back exhaust for a 2015-2023 Ford Mustang: EcoBoost, V6 (2015-2017), GT (2016-2016), replacing everything from behind the catalytic converters back, a bigger system than an axle-back.

Why Upgrade

Per Borla, this system offers:

  • Borla's patented straight-through, multi-core technology, which Borla says unlocks hidden horsepower and increases exhaust velocity
  • T-304 stainless steel construction throughout
  • steel Borla says outlasts the cheaper T-400-series (like 409) steel some competitors use
  • bright chrome stainless tips (4-inch)
  • mandrel-bent tubing and CNC-controlled manufacturing for consistent flow and a precise fit
  • a Borla Million-Mile warranty on the system

Fitment Notes

Fits 2015-2023 Ford Mustang: EcoBoost, V6 (2015-2017), GT (2016-2016). Does not fit Mustang: Mach 1, GT500, Bullitt, GT350. Per Borla's own listing: "EXCEPT Convertible and Active Valve Exhaust (4 tips). For convertible applications use PN 11938 and 11939." Pipe diameter: 2.25 inch, per the listing.

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Install and Honest Talk

This is a cat-back system, running from behind the catalytic converters to the tips; it does not touch the catalytic converters either way, so it changes sound and, per Borla, exhaust flow, not emissions equipment. Expect a louder exhaust note than stock, with some drone at certain highway RPMs possible, which is common for aftermarket exhausts. Borla does not list a dyno figure for this specific system. What else you need: [VERIFY: whether new gaskets, clamps, or hangers are included, and whether it bolts directly to your factory catalytic converter section or needs trimming].

Specs

  • Brand: Borla
  • Type: Atak Cat-Back
  • Material: T-304 stainless steel
  • Pipe diameter: 2.25 inch
  • Tip diameter: 4 inch
  • Fits: 2015-2023 Ford Mustang: EcoBoost, V6 (2015-2017), GT (2016-2016)
  • Excludes: Mustang: Mach 1, GT500, Bullitt, GT350
  • Part number: 11890
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