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Corsa Extreme Mufflers

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Old 04-18-2015, 08:52 PM
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marcouvo
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Default Corsa Extreme Mufflers
Are the Corsa Extreme NPP mufflers smaller and lighter than the stock NPP mufflers?
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Old 04-19-2015, 09:24 AM
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C8Jake
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Originally Posted by marcouvo
Are Corsa mufflers lighter than stock?
-4lbs w/Corsa mufflers
I run NO MUFFLERS w/Corsa 4.5" mirror polished tips




Last edited by C8Jake; 04-19-2015 at 12:08 PM.
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Old 04-19-2015, 09:29 AM
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Originally Posted by marcouvo
Are the Corsa Extreme NPP mufflers smaller and lighter than the stock NPP mufflers?
Yes, only 2 lbs per side though.
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Old 04-19-2015, 10:33 AM
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By "Corsa Extreme NPP mufflers" did you assume that they maintain NPP functionality like the stock mufflers?
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Old 04-19-2015, 01:44 PM
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Originally Posted by Jack Be Quick Racing
By "Corsa Extreme NPP mufflers" did you assume that they maintain NPP functionality like the stock mufflers?
Yes I did, thanx.
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Old 04-19-2015, 01:45 PM
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Originally Posted by tyho
Yes, only 2 lbs per side though.
Thank you.
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Old 04-19-2015, 01:47 PM
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Originally Posted by C7Jake
-4lbs w/Corsa mufflers
I run NO MUFFLERS w/Corsa 4.5" mirror polished tips



[IMG]https://cimg5.ibsrv.net/gimg/www.corvetteforum.com-
vbulletin/2000x743/80-tips_005_96e36319f6ba4e76b23422f20ddbe3c 429c49f81.jpg[/IMG]
Great looking tips.
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Old 04-19-2015, 06:25 PM
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Originally Posted by marcouvo
Yes I did, thanx.
I don't believe they do. If you have factory NPP, the Corsa's, I believe, will keep the AFM but not the NPP functionality. You will zip tie the NPP valves off to the side to keep from throwing a CEL but you will not have an active exhaust any longer.

Billy Boat, Borla, and one other offers factory NPP support. I am not aware of any others.
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Old 04-19-2015, 07:13 PM
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Originally Posted by Jack Be Quick Racing
I don't believe they do. If you have factory NPP, the Corsa's, I believe, will keep the AFM but not the NPP functionality. You will zip tie the NPP valves off to the side to keep from throwing a CEL but you will not have an active exhaust any longer.

Billy Boat, Borla, and one other offers factory NPP support. I am not aware of any others.
Thanx again.

I would remove the NPP valves and install a connector on the end of the wires.

Trifecta can eliminate the CEL. I bought their unit.

I would just buy the Billy Boat bullet exhaust, except the tips are only 4".
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Old 04-19-2015, 07:55 PM
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Not sure about the weight but the sound is outstanding! !!
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Old 04-19-2015, 09:00 PM
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Originally Posted by marcouvo
Thanx again.

I would remove the NPP valves and install a connector on the end of the wires.

Trifecta can eliminate the CEL. I bought their unit.

I would just buy the Billy Boat bullet exhaust, except the tips are only 4".
Just a head's up: removal of NPP valves will not trigger a code. AFM valves, however, will due to the wiring difference (return path).
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Old 04-19-2015, 10:06 PM
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Originally Posted by marcouvo
Thanx again.

I would remove the NPP valves and install a connector on the end of the wires.

Trifecta can eliminate the CEL. I bought their unit.

I would just buy the Billy Boat bullet exhaust, except the tips are only 4".
Installing the bullets tomorrow. I have the speedway tips, black. There are four tips. The 1/2 inch isn't going to make a difference in flow or performance. 3 inch pipe will make up for the smaller tips.
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Old 04-19-2015, 10:52 PM
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Originally Posted by tyho
Installing the bullets tomorrow. I have the speedway tips, black. There are four tips. The 1/2 inch isn't going to make a difference in flow or performance. 3 inch pipe will make up for the smaller tips.
Thanx, Its just that the 4-1/2" tips look better to me than smaller ones.
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Old 04-20-2015, 12:10 AM
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With the Corsa you end up using your existing NPP valves.
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Old 04-20-2015, 06:36 AM
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Originally Posted by Motohead279
Corsa uses existing NPP valves.
Corsa = NO NPP
Last edited by C8Jake; 04-20-2015 at 06:41 AM.
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Old 04-20-2015, 10:17 AM
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with corsa, you use the AFM valves but bypass NPP connections and no NPP valves. I installed the xtreme and double helix x pipe myself on my non NPP and the sound is awesome. Loud, but not bothersome while driving and makes me want to use paddle shifters more to hear the beauty of the sound.
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Old 04-21-2015, 10:58 PM
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My bad I was thinking AFM valves....
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Old 04-22-2015, 09:29 AM
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Originally Posted by marcouvo
Thanx, Its just that the 4-1/2" tips look better to me than smaller ones.
The bullets are amazing. Less drone then with the stock mufflers NPP removed. Not that loud when cruising but a nice growl when WOT. I'm quite happy with the end result.
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Old 04-22-2015, 11:01 AM
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Tyho, any good pics of BB Speedway tips on your car? I've seen some poorly aligned.
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Old 04-22-2015, 03:38 PM
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Originally Posted by C7Jake
Tyho, any good pics of BB Speedway tips on your car? I've seen some poorly aligned.
Have to take some photos. They are aligned though.
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