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Muffler Delete "Option"

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Old Mar 19, 2015 | 05:36 PM
  #1  
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Default Muffler Delete "Option"

Like C7Jake, I have just deleted my mufflers, and replaced them
with straight pipes, adding Corsa tips.

Mine is a NPP car, but I think the removal would have been the same.

It took me 4 "shops" to find one that would do the job, but I found one this week, and we did it this morning.

WOW...... much louder (maybe 20%... and I did have the NPP fuse pulled),
and it now "barks", and deceleraton gurgles and barks nicely.

Here are a few shots of the install (it was raining here !!!!!!).
I'll try to get some sound video clips when the weather is better.

Both Mufflers removed


Dry fit Left Side


Dry fit Right Side


Dry fit Both


Dry fit Tips


Tips installed looking out the back


Right side installed


Left side installed


Both pipes done


Done


Done
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Old Mar 19, 2015 | 06:56 PM
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Nice clean install. Congrats.

Do you have an audio clip?
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Old Mar 19, 2015 | 07:48 PM
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I will when the weather improves enough to make one.
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Old Mar 19, 2015 | 07:57 PM
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Awesome - it's catching on! Love straight pipes.

Connecting pipes they used look a little small, but it probably won't be an issue. The AFM already brings the diameter down so I wouldn't worry too much.
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Old Mar 20, 2015 | 02:54 AM
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Thoughts on deleting mufflers, and secondary cats ?
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Old Mar 20, 2015 | 04:50 AM
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Originally Posted by slesher
Audio clip?



Last edited by C8Jake; Apr 26, 2015 at 10:31 AM.
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Old Mar 20, 2015 | 09:24 AM
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Sounds pretty good !!
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Old Mar 20, 2015 | 08:08 PM
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So today I washed it to get all the road dirt off it from yesterday.
Of course, it is raining today too, so no road video.
But I could get a short video if it while it is in the garage.... so....

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Old Mar 21, 2015 | 01:47 AM
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I drove from the dealer to the muffler shop--and with 6 miles on the odometer cut the mufflers off and installed the Flowmaster 4" stainless tips---I love it !!! just a bit louder than an open NPP --these cars with 4 cats are really not that lould with no mufflers---It gets quieter after it warms up too---
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Old Apr 7, 2015 | 02:02 AM
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Originally Posted by tblu92
I drove from the dealer to the muffler shop--and with 6 miles on the odometer cut the mufflers off and installed the Flowmaster 4" stainless tips---I love it !!! just a bit louder than an open NPP --these cars with 4 cats are really not that lould with no mufflers---It gets quieter after it warms up too---
What did you do with the 2 NPP valves?
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Old Apr 7, 2015 | 03:30 AM
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way to go man! i had talked about doing the same thing with my car. but friends keep telling me not to do it. well, i really don't see any down sides
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Old Apr 7, 2015 | 12:16 PM
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Originally Posted by marcouvo
What did you do with the 2 NPP valves?
In my case, those valves are still attached to the mufflers which I removed.

I zap-strapped the connecting wires up out of the way.
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Old Apr 7, 2015 | 12:59 PM
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"What codes were thrown when the engine light came on?", he asked presumptiously.
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Old Apr 7, 2015 | 02:03 PM
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No engine codes were/are thrown when you disconnect (or remove the fuse) for the NPP valves.
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Old Apr 25, 2015 | 11:24 PM
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You guys deleting the muffles, will someone do me a favor?

How big is the exhaust right after the muffer before the exhaust tips, is it 2.5 inches?

Doing a custom exhaust tip, plan to start on it tomorrow.
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Old Apr 26, 2015 | 10:26 AM
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digital calipers/fabrication skills required








Last edited by C8Jake; Apr 26, 2015 at 10:34 AM.
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Old Apr 26, 2015 | 02:31 PM
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digital calipers/fabrication skills required
HAHA, I guess I asked for that one lol.

Ill go do that right now.
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To Muffler Delete "Option"

Old Apr 26, 2015 | 02:38 PM
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Its 2"
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Old Jun 25, 2015 | 03:17 AM
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Best sound out there.... ARH headers, x pipe, high flow cats & Muffler delete. People I thought would have said ahhh, to loud, didn't.... They said it sounds awesome. I'm glad I did it.
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Old Aug 8, 2015 | 12:03 AM
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For some strange reason, I like the way the OEM tips look. It seems more high end. The inside is dark and the outside is shiny. The Corsa looks shiny inside and out, giving it a cheap look.

What do you guys think? Am I strange?
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