View Full Version : Deep, mellow exhaust note on MK5?
dalves
04-20-2026, 08:15 PM
I love the deep, mellow exhaust note that's more associated with muscle cars rather than Cobras. Is there a good way to achieve that ona MK5? I know on an MK4 you could do an under body exhaust with mufflers, but I think there's no longer room for that on the new frame. What's the best way to get that effect on a MK5?
PNWTim
04-20-2026, 08:50 PM
Take the MK5 badge and put it on a 69 Corvette. OK, all kidding aside, there is about 8' of 3" exhaust pipe and large dual mufflers missing from the equation. I don't think you can duplicate that sound with a direct from header to 4' narrow muffler side pipes. Maybe others have more insight but I can tell just looking at my coupe it is going to be louder and higher pitched than my 69 Camaro. It is what it is.
Erik W. Treves
04-20-2026, 09:39 PM
Have you listened to the new MK5 pipes yet??
Cobraman
04-20-2026, 10:12 PM
I'm looking forward to seeing how this ends up my wife says my mk 4 is to loud, need to tone it down a bit.
Me I just take the hearing aids out no problem.
Blitzboy54
04-21-2026, 07:00 AM
You can weld in mufflers. Cats help too.
I did both
Joel Hauser
04-21-2026, 07:19 AM
I followed Norm B's instructions on using auger insterts. https://thefactoryfiveforum.com/showthread.php?26142-Exhaust-Baffles-for-side-pipes&highlight=patriot+exhaust , at post 11. I think it worked great. The car is still loud, but has much much less bark. Thanks, Norm.
FFinisher
04-21-2026, 08:29 AM
I have a MKV with a Gen3 coyote. I installed car chemistry inserts in the Headers. They are available from Summit racing, easy to install, And they work well. They take the bark out of the exhaust. I have used them on Many cars. Here is an example.
https://www.summitracing.com/parts/cci-3di25r?seid=srese1&gclid=CjwKCAjwwJzPBhBREiwAJfHRnVdFI0bsX8jWamtMmCx0 6vIEeeRvkYlciOJCAnBHKMcah_PdGf7T2BoCczMQAvD_BwE
PNWTim
04-21-2026, 08:35 AM
I have a MKV with a Gen3 coyote. I installed car chemistry inserts in the Headers. They are available from Summit racing, easy to install, And they work well. They take the bark out of the exhaust. I have used them on Many cars. Here is an example.
https://www.summitracing.com/parts/cci-3di25r?seid=srese1&gclid=CjwKCAjwwJzPBhBREiwAJfHRnVdFI0bsX8jWamtMmCx0 6vIEeeRvkYlciOJCAnBHKMcah_PdGf7T2BoCczMQAvD_BwE
These are interesting. Do they change both tone and decibel level?
Cobraman
04-21-2026, 06:35 PM
I have a MKV with a Gen3 coyote. I installed car chemistry inserts in the Headers. They are available from Summit racing, easy to install, And they work well. They take the bark out of the exhaust. I have used them on Many cars. Here is an example.
https://www.summitracing.com/parts/cci-3di25r?seid=srese1&gclid=CjwKCAjwwJzPBhBREiwAJfHRnVdFI0bsX8jWamtMmCx0 6vIEeeRvkYlciOJCAnBHKMcah_PdGf7T2BoCczMQAvD_BwE
I would be interested in seeing some pictures as how they installed I'm kinda a visual person my mk4 with408 stroker is loud
FFinisher
04-21-2026, 07:58 PM
I didn't take any photos. But.... I removed the side pipe connection at the header, and pushed them into the ball connector and welded them in . Simple.
Yes, change the tone, totally removed the bark, and makes I quieter
Mike.Bray
04-21-2026, 09:18 PM
Mellow and Cobra aren't two words you normally see together.
Cobraman
04-21-2026, 10:18 PM
I didn't take any photos. But.... I removed the side pipe connection at the header, and pushed them into the ball connector and welded them in . Simple.
Yes, change the tone, totally removed the bark, and makes I quieter
Sounds simple enough
SteveHsr
04-21-2026, 11:56 PM
I love the deep, mellow exhaust note that's more associated with muscle cars rather than Cobras. Is there a good way to achieve that ona MK5? I know on an MK4 you could do an under body exhaust with mufflers, but I think there's no longer room for that on the new frame. What's the best way to get that effect on a MK5?
Look at 28 or 30 inch cobrapak mufflers from Classic Chambered Exhaust.
AA-ron
04-22-2026, 10:46 AM
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I also wanted a Roadster with a bit more of a quieter mellow note. My wife is very sensitive to loud noises and if I had hopes of her riding with me, I needed to do something different. I have rear IRS, which makes rear mounted exhaust (muffler) challenging. I opted to build mine into the nose of the car, where there is a surprising amount of space. The resulting sound is comfortable, deep and mellow-- in part because of the x-pipe for sure. I've got about 12k miles on it and love every part of it!