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Krona Performance 3 in. Cat-Back Exhaust (15-17 GT Fastback)

Market Price $1,494.99 You Save 13% ($195.00)
Our Price

$1,299.99

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  • Item 393964
  • MPN# KP-026

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Features, Video & Details

  • Aggressive Sound Without Rasp or Cabin Drone
  • Improves Exhaust Flow
  • T-304 Stainless Steel Mandrel-Bent Tubing
  • Resonator Mid-Pipe and Straight Through Mufflers Included
  • 4.5" Polished Stainless Tips w/ Krona Performance Logo
  • Direct Bolt-On Replacement Upgrade
  • Proudly Made in the USA
  • Lifetime Warranty
  • Fits 2015-2017 GT Fastback Mustangs

Review & Installation Video

Review & Install Video

The Sound of Power. Give your 2015-2017 Coyote powered Mustang a more aggressive exhaust note by upgrading to a Krona Performance 3" Cat-Back Exhaust System. Engineered using Helmholtz's Theory of Tone, this Krona Cat-Back incorporates both active and passive resonators to add a more intimidating sound to your GT without any annoying cabin drone or harsh, ear splitting rasp. A Krona Performance Cat-Back is perfect for those who don't want to upset the entire neighborhood while out enjoying a cruise around town.

Improves Exhaust Flow. Not only will a Krona Performance Cat-Back improve the sound of your V8 powered Mustang, but it will also improve its exhaust flow as well. This Cat-Back features a high flow mid pipe resonator, that eliminates the bulky factory unit and replaces the restrictive 2.5" factory piping with mandrel-bent 3" tubing. Together with a pair of high flow straight-through mufflers this Krona Cat-Back will significantly improve the exhaust flow of your GT Mustang when compared to the stock cat-back system.

Stainless Steel Construction. Krona Performance proudly manufactures their exhaust systems right here in the USA. This Cat-Back is constructed from 0.065” thick mandrel bent T304 stainless steel tubing for superior strength and long lasting corrosion resistance. The included straight through mufflers end with mirror polished double wall rolled 4.5" tips that have been laser etched with the Krona Performance logo for impressive good looks.

Direct Bolt-On Installation. Krona Performance engineered their Cat-Back to be a direct bolt-on upgrade replacement for your Mustang's factory exhaust. There is no cutting or extra modifications required. Installation of this Krona Performance Exhaust can be completed in about a two hours with just basic hand tools.

Application. This Krona Performance 3" Cat-Back Exhaust System is specifically designed to fit 2015-2017 Fastback GT Mustangs equipped with the DOHC 5.0L V8 Coyote engine. Not compatible with Convertible models.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Mid-Pipe With Resonator
  • (1) Passenger Side Muffler Assembly
  • (1) Driver Side Muffler Assembly
  • (2) 2.5” to 3” Adapter
  • (2) V-band Clamp
  • (4) Compression Clamps
Installation Info
Tech Specs
Catback Exhaust Specifications
Piping Material: T304 Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 3" - 2.5" Step Downs Included Tip Size: 4.5"
Muffler Type: Straight-through Fitment: 2015-2017 EcoBoost
Will it fit my Mustang?
  • GT - 15, 16, 17

Does not fit convertible models.

Most Helpful Reviews

5/5
Wow

Installed it in about a hour with my brother with zero problems. Everything fit together perfectly. Loved the craftsmanship on this exhaust and the tips look amazing installed, really fills out the exhaust ...

Read More
Helpful (3)

5/5
Exactly what I was looking for

To start off, when I received the Krona kit one of the tips was scratched and although it wasn't the end of the world, it was right next to the Krona logo. I reached out to AM customer service who provided ...

Read More
Helpful (2)

Overall Rating 4.8 out of 5 stars
Read All 11 Reviews

Customer Photos (8) Submit Your Photo

View All 8 Photos

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1 Questions / 1 Answers

Ask a Question

I'm installing Pypes off road headers with 3" pipes from the header collector to the resonator. The photo appears to have step up pipes from the factory 2.5" system. Will this 3" header system system couple up properly to the Krona resonator pipes without any adapter piping?

GaryS

  • The header system will be able to couple up to this Krona PErformance 3" cat-back without additional adapters or piping.

    KevinD92

Helpful (1)

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Customer Reviews (11) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4.272727 4.3
  • Exhaust Note 4.818182 4.8
  • Fit & Finish 4.909091 4.9
  • Bang For Your Buck 4.363636 4.4



  • 5/5

    Installation Time: Less than 1 Hour

    December 11, 2016

    Wow

    Installed it in about a hour with my brother with zero problems. Everything fit together perfectly. Loved the craftsmanship on this exhaust and the tips look amazing installed, really fills out the exhaust area. I will say it's much louder then the AA review said it was but mostly not in a bad way and there is deff a decent amount of cabin noise from it. I even get a bit of drone around 65mph but it's very controllable just slowing down or speeding up a slight bit stops it pretty quickly, I'm hoping it may just need a few more miles on it to break in possibly. But the exhaust note itself is easily the one of if not the best I've heard, no raspiness, very deep rumble and when you do hit those high rpms it's tone goes up quickly but not in a tin can way. Deff glad I went with this exhaust over a louder rated exhaust because that would just be insane to daily drive. This exhaust will deff wake the neighbors while coming or going unless you coast home. It is remarkably quiet though at low rpms

    502s550

    Year: 2015 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Afternoon

    October 08, 2017

    Exactly what I was looking for

    To start off, when I received the Krona kit one of the tips was scratched and although it wasn't the end of the world, it was right next to the Krona logo. I reached out to AM customer service who provided me with three different options to remedy the situation. All were fair however I reached out to Matt at Krona themselves to see what a single tip costs in case I took one of the options AM gave me (a partial credit if I wanted to keep the tip). Matt suggested I send the tip directly to Krona to have them fix. I did exactly that. Matt even paid for the shipping. Overall both AM and Krona went way above and beyond to remedy a scratched exhaust tip - overall really impressive! On to the kit: I feel like ALL videos I've seen of this kit don't quite do it justice. The tone is something you need to experience in person. As a musician (although anyone should be able) I can tell the Krona produces a couple frequencies that run of the mill mics seem to have a hard time capturing. It's not only unique but ear to ear smile-inducing, juicy and full of body, tangible like you could touch the tone. It's hard to describe, but it's soooo gooood. Volume is decent. I asked my neighbor if he could hear me softly leaving the neighborhood and he said he had no idea I went by his house several times. So it's fairly loud when you want, but very easy to control, all the way down to factory exhaust volume if needed - just keep RPM below 2k. Installation is easy, and compared to catback installs under live-axle Mustangs of the past it's actually a dream. Just a tip: check the clamps for tightness a couple times after regular usage. Overall I was a little bent out of shape about my scratched exhaust tip, but thoroughly won over by Matt at Krona and AM's great customer service. The kit speaks for itself - if you like what you hear in the AM vid, you will love it in person, simple as that.

    James

    Year: 2016 Submodel: GT

    Helpful (2)

  • 5/5

    October 14, 2017

    Excellent quality and sound for my Mustang GT

    Can't beat this exhaust for the price. High quality and excellent sound with zero drone. This exhaust is just as good as the Corsa for less money. The fit and finish is excellent. I highly recommend this exhaust. AM is awesome! I ordered this on Friday and had it at my door Saturday! And I chose standard shipping! Two thumbs up for AM!

    MikeR

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    September 19, 2017

    Premium Quality Cat-Back

    I recently switched from another cat-back that I was having issues with to the Krona Performance and the difference is night and day in terms of both quality and sound. Before purchasing the Krona, I was in contact with the owner (Matt Printz) and he is one of the nicest people you will interact with. And since it's a small company, you will receive support directly from him. For me, he went above and beyond especially after hearing about the issues I was having with my previous cat-back. In the end, it was all worth it to end up with this premium cat-back and meeting a great person. The system should be valued at $2K; so, the price here is a bargain. I say this because my previous vehicle was a Mercedes and the cheapest cat-back you could get for it is around $2K. The quality of this system is on par with the best systems for much higher end vehicles. The fit and finish is amazing thanks to the clamp system being used (which also makes installation and removal a breeze). The sound is just the right amount of aggressiveness with no drone whatsoever inside the cabin. This was very important to me because my wife won't ride in a car with drone. Get THIS cat-back if you're trying to decide. Don't make the same mistake as I did!

    Jeff

    Year: 2017 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    July 02, 2017

    Very Nice Exhaust

    This Krona cat back is a very nice setup. Installs easily thanks to its design. Took my self less then an hour on Jack stands in my garage. Takes longer to remove the stock system then to install the Krona Parts. Welds are all top notch as is the construction of everything else. Love the 4 1/2" tips that are completely adjustable to get them to your liking. The exhaust note/tone is perfect, I think. Very nice deep idle, that gains in tone and aggressiveness as you increase throttle. Perfect for something that is not track toy, could very easily daily drive with this setup. It is non offensive at highway speeds in the S550. Waiting patiently to add a set of their headers to it once they come out.

    BrandonH

    Year: 2017 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    October 03, 2016

    Krona Performance: Turning Heads

    I get complimented on this exhaust constantly. It's honestly one of the best sounding kits available and made to the highest level of quality. The owner - Matt Printz - is such a standup guy as well. I've had the pleasure of working with him since the Krona Ecoboost exhaust came out and I'm very happy I stayed on-board once I got my GT. The sound this thing makes is fantastic. No drone whatsoever, WOT screams like a Corsa, but cruising leaves you with this nice grumbly popping tone like you'd hear from a Solo kit. To me, it's the best of both worlds without sacrificing anything. Cannot wait to get a set of Krona 1 7/8 Headers (coming Q4 '16) next... [Look up Krona Performance Catback on YouTube to see a few sound clips I posted!]

    therealdannye

    Year: 2016 Submodel: GT

    Helpful (1)

  • 3/5

    Installation Time: Less than 1 Hour

    September 23, 2017

    Great tone and finish, but it drones

    I previously had the Corsa Extreme Catback on my GT and although I had ZERO drone with it, I wasn't the biggest fan of the high pitched rasp. After doing research and viewing what videos are available for this not popular system I decided it had the deep sound I was looking for with a Corsa like finish. As far as the product itself, the fit and finish are the best that I have ever laid eyes on. Perfect welds all 304, just cherry. The tone is perfect from these building from a guttural rumble to a refined scream at WOT. The tone alone I would also rank above Corsa. However, when driving at 65 mph or 72-83mph (Highway cruising speed) you get a definite constant cabin noise. This is where I am a little upset with American Muscle as I don't think they did their due diligence when testing this system. Advertised as no drone (untrue). I will be selling the system privately and replacing with another Corsa System unfortunately because drone isn't acceptable on a system this expensive.

    red502011

    Year: 2017 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Less than 1 Hour

    September 21, 2017

    The PERFECT exhaust for your S550

    I have had my share of mustangs from fox bodies, to an 03 cobra and now currently my 17 GT. I spent months researching a perfect cat back that wouldn't be obnoxious or be too quiet. Thankfully I found some clips of this cat back on the M6G forums and I knew right away this was the kit. Besides the perfect fit, seemless install and amazing sound; the price is on par with what you receive. Couldn't be any happier!

    KeithRichards

    Year: 2017 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Afternoon

    September 19, 2017

    True Muscle Sound

    First off i had problems with shipping, but american muscle customer service is amazing! Now about the exhaust. The quality of this product is too notch. The sounds/tone is absolutely amazing. Almost stock at idle or cruising, but accelerating/wot turns your car into a true beast showing off the v8 underneath. No drone or rasp really even at highway speeds. Krona Performance is definitely not a big name when coming to exhaust mods for the mustangs, but the owner Matt and his company did a great job with this product.

    KhoaStangLover

    Year: 2017 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Less than 1 Hour

    July 09, 2017

    Krona for GT

    Excellent quality exhaust system, installed in about 15mins. The sound is astonishing!

    BenS

    Year: 2015 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Afternoon

    September 30, 2016

    GREAT SYSTEM!!!

    I have been running the Krona 3in system for bout 2 months now an couldn't be more happier with the setup. The time that was put into developing this system was well worth the wait. The quality of the system is great, the system bolted right up with no problems, comes with all the clamps and hardware you need. Once I install my krona kit I fell in love all over again with my car, the sound is amazing, I am running Cat-less longtube headers and have no drone at all which is what I wanted, the system sounds great while cruising and am still able to talk to passengers and on the phone. As soon as you down shift and go WOT it is like waking up a monster, amazing loud and sounds great. The 4 1/2 inch chrome tips really make the rear end pop. All in all I definitely got what I was looking for when I installed the exhaust and couldn't be more happier with the Krona system.

    Wes

    Year: 2015 Submodel: GT

    Helpful (0)

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