Is the stock exhaust on the Mach 1 louder than the GT?

[superspartan]

I test drove the Mustang GT 2021 about 6 months ago and recently test drove the Mach 1. Not sure if it's only in my head but I felt the Mach 1 exhaust is throatier and louder. Is that the case or are they basically the same exhaust?

The best stock exhaust I personally have heard was the Shelby GT350 that I saw at the dealership last year that thing was wild!

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[SupremeFocus]

The Mach 1 has active valve exhaust the gt you drive probably didn’t have that.

 

[Zelek]

The exhaust is definitely loud for an OEM system. @crzystang has a video with catted headers and the OEM exhaust and it still is really loud even with a resonator.

 

[superspartan]

The exhaust is definitely loud for an OEM system. @crzystang has a video with catted headers and the OEM exhaust and it still is really loud even with a resonator.

It is indeed one of the loudest stock exhausts I've heard. I didn't like the stock exhaust on the Corvette BTW.

PS: My VIN Number is very similar to yours, just a different order. M5590

 

[Bikeman315]

I test drove the Mustang GT 2021 about 6 months ago and recently test drove the Mach 1. Not sure if it's only in my head but I felt the Mach 1 exhaust is throatier and louder. Is that the case or are they basically the same exhaust?

The best stock exhaust I personally have heard was the Shelby GT350 that I saw at the dealership last year that thing was wild!

If the GT had the active exhaust the hardware is the same. The Mach 1 has has some different engine parts and tune that give it a different sound.

Edit: Duh, Mach 1 has different mufflers.

 

[Zelek]

If the GT had the active exhaust the hardware is the same. The Mach 1 has has some different engine parts and tune that give it a different sound.

The mufflers are not the same. Everything up from that looks the same.

 

[Bikeman315]

The mufflers are not the same. Everything up from that looks the same.

Thanks for updating. I realized that after I posted and was going to charge it.

 

[Zelek]

For these reasons I'm not doing a resonator delete because I want to do a tune with headers. No resonator will be rasp city and it will be extremely loud. I don't mind the loudness but the rasp is what makes it sound pretty bad. I was considering the Magnaflow Tru-X but I've seen it restrict flow some on reviews. I'm not even sure how restrictive the stock exhaust is at the resonator section.

 

[Bikeman315]

For these reasons I'm not doing a resonator delete because I want to do a tune with headers. No resonator will be rasp city and it will be extremely loud. I don't mind the loudness but the rasp is what makes it sound pretty bad. I was considering the Magnaflow Tru-X but I've seen it restrict flow some on reviews. I'm not even sure how restrictive the stock exhaust is at the resonator section.

How about this?

https://www.cjponyparts.com/borla-x...3z_8RFqH4fjqUrWuwf-vjSokT1f6j15waAn9-EALw_wcB

 

[Zelek]

How about this?

https://www.cjponyparts.com/borla-x...3z_8RFqH4fjqUrWuwf-vjSokT1f6j15waAn9-EALw_wcB

It works well for stock headers but gets a little nasty with headers. It would probably be one of the top choices for a mid pipe since you get a unique tone with it. I just wish someone would make an X-pipe that had 2 long bullet resonators at the end of it. I may end up doing that with an X-pipe and have a shop just cut and add them in.

 

[Coastal-Mach]

It works well for stock headers but gets a little nasty with headers. It would probably be one of the top choices for a mid pipe since you get a unique tone with it. I just wish someone would make an X-pipe that had 2 long bullet resonators at the end of it. I may end up doing that with an X-pipe and have a shop just cut and add them in.

If you want to try it, let me know I have a set of SLP-LM1 resonators sitting in the shed. Make offer, I had them on my 03 M1, hated the drone and rasp with catted LTH.

 

[br_an]

The best stock exhaust I personally have heard was the Shelby GT350

you'll trigger the M1 kids

 

[DarthMalice]

Carl Widmann addressed this in a video...GT500 muffler and unique tips on Mach 1 give it a different sound. He also said the perforated tips were to take out high frequencies to make it just barely legal for all markets where the M1 is sold. I have never seen decibel reading for the Mach 1 though. Wonder if track breaks the 96 db that California is now cracking down on with sound cameras.

 

[OnThree]

For these reasons I'm not doing a resonator delete because I want to do a tune with headers. No resonator will be rasp city and it will be extremely loud. I don't mind the loudness but the rasp is what makes it sound pretty bad. I was considering the Magnaflow Tru-X but I've seen it restrict flow some on reviews. I'm not even sure how restrictive the stock exhaust is at the resonator section.

Corsa double h pipe would probably sound pretty clean with the Mach active exhaust and should have no rasp

 

[Charlemagne]

I have never seen decibel reading for the Mach 1 though.

Here's measurements that Steeda did for various modes in stock and with their H-pipe.

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