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Will corsa Sport show any gains on my system over base S/C

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Old 10-02-2017, 09:49 AM
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davered00ss
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Default Will corsa Sport show any gains on my system over base S/C

I'm running an A&A vortec kit with 1 7/8 ARH headers to a stock base C6 exhaust.

Just wondering if a Corsa sport will show any gains at all over stock?

Right now, the car sounds stock exhaust wise, which I kind of like. Wouldn't mind a little better sound under acceleration, but want to be able to talk on phone without issue under normal driving conditions.
Old 10-02-2017, 11:16 AM
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Unreal
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If performance is your goal, there are MUCH better areas to spend money. You may gain 2-5hp, and it will be a lot louder.

Add meth and drop a pulley size if you want more power.
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Old 10-02-2017, 11:25 AM
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I knew it wouldn't be much bang for the buck. I just wasn't sure if stock exhaust was a restriction at this point. I was at 520's rwhp before the headers. X pipe does have cats. I'm assuming 550 ish now. I haven't had a change to get it on the dyno

I kind of don't want to do meth at this point.
Old 10-02-2017, 11:44 AM
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Chiselchst
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Agreed HP wise bang for the buck totally not worth it..if HP is your only goal.

Mine is about the same HP as yours. I have ZR1 exhaust with Corsa Sport and it is pretty loud at WOT. Normal driving it's not loud at all.

Originally Posted by davered00ss
I'm running an A&A vortec kit with 1 7/8 ARH headers to a stock base C6 exhaust.

Just wondering if a Corsa sport will show any gains at all over stock?

Right now, the car sounds stock exhaust wise, which I kind of like. Wouldn't mind a little better sound under acceleration, but want to be able to talk on phone without issue under normal driving conditions.
Old 10-02-2017, 11:57 AM
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Stock 2.5" system has made over 1400rwhp. So once you get in that range, upgrade.

Meth is the hands down best bang for the buck for not only performance, but added safety.
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Old 10-02-2017, 12:13 PM
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lt1z
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It depends if you have thew true base C6 axle back or the 2.5" NPP. I wouldn't bother with NPP but there are gains to be had over the true base exhaust.
Old 10-02-2017, 12:39 PM
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Its a true base exhaust
Old 10-02-2017, 02:09 PM
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Chiselchst
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So, even with a 6-7 HP gain, that's >$190 per HP. Are you on a budget?
Might be better with a catless x-pipe too, if budget is not a factor...will make louder, too..
Originally Posted by davered00ss
Its a true base exhaust

Last edited by Chiselchst; 10-02-2017 at 02:10 PM.
Old 10-02-2017, 02:16 PM
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Corsa sports sound good but if you ever swap the cam there would be no way to quiet it down for inspection or long drives. Not worth it imo.
Old 10-02-2017, 02:47 PM
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neverstop
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I love my NPP exhaust since can open it up and be loud and sounds great, and then close it and the car is super quiet. it wasn't expensive to get a used on and then have local shop weld it up and when open those exhausts have been run at 1200+ whp
Old 10-02-2017, 04:49 PM
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JetstreamGS
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Sound alone is worth it imo. Love my Corsa Sports! Not to mention the bigger tips look cool too.
Old 10-02-2017, 07:22 PM
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You could always do something like this used...
Old 10-03-2017, 07:15 AM
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Originally Posted by Chiselchst
You could always do something like this used...
I'd love to, but install and getting the NPP working seems like a major pain
Old 10-03-2017, 11:45 AM
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Just a switched vacuum line...to open/close the actuators.

Originally Posted by davered00ss
I'd love to, but install and getting the NPP working seems like a major pain
Old 10-03-2017, 02:56 PM
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I've had both NPP's and Corsa Sports behind a blown (with cam) mid 600's LS3. The Corsa Sports are quiet at cruise and scream at WOT. That's with long tubes and no cats. You'll hear them a little on an upgrade, but for flat ground cruising they're pretty much quiet. Good choice if you don't want to do a little plumbing for the NPP's. It's really quite simply though. A couple of vacuum lines and wiring 12 V current to one of the cubby holes (where the Mild to Wild switched vacuum pot resides) is all there is to it.

Your HP increase will be well beyond 6hp that you get with the NPP muffs. As HP goes up, so does the amount of restriction in the mufflers. When my '08 was cam only, it made 475 wheel with the flaps open and 20 hp less with them closed. The stock mufflers, I'm sure, are better than the NPP's closed, but that illustrates my point.
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Old 10-03-2017, 04:27 PM
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Gain noise, drone, and headaches.
Old 10-03-2017, 10:26 PM
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Originally Posted by Detoxx03
Gain noise, drone, and headaches.
LS7 - ECS supercharger, LT's, catted X pipe, Corsa

Zero drone, reasonably quiet cruising

LS9 - cammed, Procharger F1A, LT's, catted X pipe, no sound deadening behind seats due to roll bar, Corsa

Still zero drone, louder then the above combo but still very liveable cruising

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To Will corsa Sport show any gains on my system over base S/C

Old 10-04-2017, 12:18 PM
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Took my car out this morning and didn't want to listen to the open npp. One click and it was back to stock.
Old 10-04-2017, 03:44 PM
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Chiselchst
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I agree with this below. Mine are very quite when I want them to be. Extremely quite. No drone either...loud at WOT though.
Originally Posted by Six-Gun-Todd
LS7 - ECS supercharger, LT's, catted X pipe, Corsa

Zero drone, reasonably quiet cruising

LS9 - cammed, Procharger F1A, LT's, catted X pipe, no sound deadening behind seats due to roll bar, Corsa

Still zero drone, louder then the above combo but still very liveable cruising
Originally Posted by old motorhead
I've had both NPP's and Corsa Sports behind a blown (with cam) mid 600's LS3. The Corsa Sports are quiet at cruise and scream at WOT. That's with long tubes and no cats. You'll hear them a little on an upgrade, but for flat ground cruising they're pretty much quiet. Good choice if you don't want to do a little plumbing for the NPP's. It's really quite simply though. A couple of vacuum lines and wiring 12 V current to one of the cubby holes (where the Mild to Wild switched vacuum pot resides) is all there is to it.

Your HP increase will be well beyond 6hp that you get with the NPP muffs. As HP goes up, so does the amount of restriction in the mufflers. When my '08 was cam only, it made 475 wheel with the flaps open and 20 hp less with them closed. The stock mufflers, I'm sure, are better than the NPP's closed, but that illustrates my point.
Old 10-04-2017, 04:00 PM
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Originally Posted by Chiselchst
I agree with this below. Mine are very quite when I want them to be. Extremely quite. No drone either...loud at WOT though.
Agreed! Corsa ftw!!


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