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Exhaust Cut Outs?

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Old Feb 19, 2016 | 01:24 PM
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Default Exhaust Cut Outs?

Are exhaust cut outs worth the money and time of doing it? I know it sounds really good but is that about all you will be getting out of it?
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Old Feb 19, 2016 | 01:56 PM
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it's worth a few hp at best, but everyone does it for the sound, not the performance gains. I'm in the process of installing a set on my FRC.
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Old Feb 19, 2016 | 02:03 PM
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They are illegal in my state, so I won't be getting cutouts.
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Old Feb 19, 2016 | 06:07 PM
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I love mine.

DMH's now 10 years now without a single issue.

My favorite mod.

Stock quiet or NASCAR nasty at the push of a button

Last edited by ALLEGRO; Feb 21, 2016 at 09:29 PM.
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Old Feb 19, 2016 | 08:01 PM
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Any long term reliability issues or what about damage to leaf springs?
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Old Feb 19, 2016 | 08:49 PM
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Yes, well worth it. They really became vocal after the long tubes and cam install. I put mine on the 90 degree bend just prior to the mufflers. Didn't want the drone noise under the car.

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Old Feb 19, 2016 | 09:33 PM
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IMO, it's a question only you can answer. While it may sound good, it's just not something I am really interested in doing to my car. It's loud enough the way it is.
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Old Feb 20, 2016 | 06:06 PM
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They are a great mod. Cost about 1/2 the price of a catback and I would say good reliability. I've had the Dmh cutouts on my car for about 6 years now. I've only had two issues. One was the switch went out and the other was a cutout motor fell off. Everything was replaced by Dmh under warranty. I run my stock z06 ti mufflers and if I want loud I open the cutouts.
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Old Feb 20, 2016 | 06:53 PM
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Originally Posted by Efx
Any long term reliability issues or what about damage to leaf springs?
I run the QTP electric cut outs just before the over axle pipes to the mufflers. I also run coil overs so can't answer about damage to the leaf springs. I would imagine you would have to run them open full time to significantly cause damage to the leaf springs.
Mine are behind my XS Power headers and X-pipe and then into Z06 Ti mufflers. They are used ocassionally on the street and at the track. They probably made more a difference with all the other mods but the sound is loud when open and it certainly accentuates the cam lope when open.
As said its a personal choice and up to you.

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Old Feb 20, 2016 | 07:03 PM
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I have them but didn't get electric ones. Just the welded in pipe and I removed the covers by hand. They will need a turn down because it will melt the leaf spring.
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Old Feb 21, 2016 | 08:12 AM
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Considering it as my next mod primarily for use at the track..... Haven't seen a clean looking install on a C5 with an A4 yet, looks easier to do on a 6 speed...
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Old Feb 21, 2016 | 09:19 AM
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Originally Posted by dankhts
Considering it as my next mod primarily for use at the track..... Haven't seen a clean looking install on a C5 with an A4 yet, looks easier to do on a 6 speed...
Do a search and you will find a couple of installs done at the muffler as a bypass. I believe member StrangeloveM6vert has done one like that.
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Old Feb 21, 2016 | 06:15 PM
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I have TIs with the bypass mod now.....quieter than my last set up.... Not bad sound but still want cut outs for the track...
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Old Feb 21, 2016 | 07:46 PM
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Originally Posted by dankhts
I have TIs with the bypass mod now.....quieter than my last set up.... Not bad sound but still want cut outs for the track...
Found this on Youtube:

Not much in the way of verbal instruction but you see the placement. May help a little.
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Old Feb 22, 2016 | 09:19 AM
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^funny video and pretty informative on how to do the fab yourself. I'm about to tackle this on my system.
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Old Feb 22, 2016 | 10:44 AM
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cutouts let you vary the sound of your exhaust, when on a ride sometimes you get tired of the constant drone, cutouts allow you to change it
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Old Feb 23, 2016 | 09:17 AM
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Which ones are the best? Looks like the oval ones fit a lot better.
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To Exhaust Cut Outs?

Old Feb 23, 2016 | 09:55 AM
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Oval are the low profile
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Old Feb 23, 2016 | 12:36 PM
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My car came with QTP cutouts installed. I used to open/shut them a lot but haven't shut them in about 6 months.

It sounds better than a stock exhaust, but I'm getting borla stingers and x pipe. I want a deeper tone. Cutouts sound good at full throttle but the idle sound is not my favorite.
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Old May 14, 2016 | 04:58 PM
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Originally Posted by alxltd1
I run the QTP electric cut outs just before the over axle pipes to the mufflers. I also run coil overs so can't answer about damage to the leaf springs. I would imagine you would have to run them open full time to significantly cause damage to the leaf springs.
Mine are behind my XS Power headers and X-pipe and then into Z06 Ti mufflers. They are used ocassionally on the street and at the track. They probably made more a difference with all the other mods but the sound is loud when open and it certainly accentuates the cam lope when open.
As said its a personal choice and up to you.

alxltd1, I have sent you a Private Message with questions regarding this topic

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