Npp
Thread Starter
Racer
Joined: Aug 2009
Posts: 379
Likes: 0
Npp
Looking to buy 08/09.....should the NPP exhaust be a must have?
I know it gives 6 more HP but what about the sound...is it the same as a stock exhaust?
Input on this would be great as I found many 08's that I do like do not have NNP.
Thanks guys
Chris
I know it gives 6 more HP but what about the sound...is it the same as a stock exhaust?
Input on this would be great as I found many 08's that I do like do not have NNP.
Thanks guys
Chris
Pro
Joined: Dec 2005
Posts: 650
Likes: 0
From: Dallas Texas
Do a search for NPP threads and you will find the option is highly recommended by many members. The sound is much fuller and louder than stock when the butterflies are open above 3500 rpm.
The consensus of Forum members seems to be that to get the most out of the NPP system you will need an aftermarket product like the Mild to Wild switch that allows you with a touch of button to set the butterflies to open at 0 rpm instead of 3500 rpm, or back again. Simple installation, available for under $100.
http://www.topflightrepro.com/corvet...products.shtml
A step up is the Sunset Orange product for $250 to $310 which allows you to select an rpm other than 0 or 3500 at which the butterflies open --
"Ultimate Exhaust Commander with a no splice rpm option
You can set the rpm at which the butterflies open, as well as choose between full open and user selected rpm open with the one button wireless remote. You choose either lower rpm open or stock rpm open on the rpm unit.
The rpm signal requires no splicing or tapping of any wires. Its a plug and play device."
http://www.shop.sunsetorangecreation...sc?productId=8
The consensus of Forum members seems to be that to get the most out of the NPP system you will need an aftermarket product like the Mild to Wild switch that allows you with a touch of button to set the butterflies to open at 0 rpm instead of 3500 rpm, or back again. Simple installation, available for under $100.
http://www.topflightrepro.com/corvet...products.shtml
A step up is the Sunset Orange product for $250 to $310 which allows you to select an rpm other than 0 or 3500 at which the butterflies open --
"Ultimate Exhaust Commander with a no splice rpm option
You can set the rpm at which the butterflies open, as well as choose between full open and user selected rpm open with the one button wireless remote. You choose either lower rpm open or stock rpm open on the rpm unit.
The rpm signal requires no splicing or tapping of any wires. Its a plug and play device."
http://www.shop.sunsetorangecreation...sc?productId=8
Last edited by tanko; Dec 13, 2009 at 12:06 AM.
Pro
Joined: Apr 2008
Posts: 643
Likes: 1
From: LONG ISLAND NEW YORK
The sound, without question, is great considering its coming from a stock exhaust, albeit backed up by our LT3 engine which sure helps!!! Everyone who asks me about it cannot believe that you can buy an American auto with an exhaust that sounds like it does right out of the factory. It's not obnoxoiusly loud, but is way lounder then any stock exhasut I've ever heard on an American car. At first (I ordered my car as I wanted a 4LT package, but didn't want Nav or the chrome rims, which every single 4LT that dealers had in stock all were brought in this way) I didn't want the NPP, but after thinking about it I realized that when going out with the wife or just wanted to be a "sleeper" an after market exhaust won't allow for this. I called my dealership and was just able to get the NPP added before my order was locked in stone at the factory. I am extremely happy with it and have never looked back. I might add headers one day, but would still leave everything back from them stock!!!
Instructor
Joined: Jul 2009
Posts: 131
Likes: 1
From: Huntington New York
It's phenomenal. As the other posters said, with the butterflies open the sound is exactly what you'd expect out of a Corvette. But the big plus is--if you need to go stealth (early morning or late night errands) the car is as quiet as any family sedan--but still runs like a champ. You'll love it.
Melting Slicks
Joined: Nov 2008
Posts: 2,186
Likes: 10
From: Virginia Beach VA
St. Jude Donor '10-'11-'12-'13-'14-'15-'16-'17,’18,’19
NCM Sinkhole Donor
Yes you definitely want the NPP exhaust and get yourself a M2W controller from nakidparts.com. The exhaust sounds great with the butterflies open.
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Le Mans Master
Joined: Feb 2008
Posts: 5,188
Likes: 4
From: S.F. Bay Area CA.
Z51, MZ6, AND NPP are must haves. There is 52 2009's left, 20 1LT's, 10 2LT's, 18 3LT's, and 4 4LT's. There are also 2 2008 3LT Pace Cars left, the stickers come off. 
http://jeffhardy.com/lookupvette09.php
http://jeffhardy.com/lookupvette09.php
Racer
Joined: Dec 2009
Posts: 298
Likes: 1
I get SOOOO amny compliments - Looks GREAT with the actuators on top - And, the valves in the pipes visible to drivers behind you.
YESSSSSS.
And now, I am going to look into the products mentioned above...
Marc
www.HandymanMarC.com
YESSSSSS.
And now, I am going to look into the products mentioned above...
Marc
www.HandymanMarC.com
Instructor
Joined: Sep 2009
Posts: 118
Likes: 0
Yes it was a "must have" when I located my car. I leave mine open all the time, Mild2Wild. In my opinion the stock exhaust is just way to mellow on a performance car like the Vette.
And to answer your question the stock exhaust is "NOT" the same.
And to answer your question the stock exhaust is "NOT" the same.
Pro
Joined: May 2008
Posts: 577
Likes: 2
From: Downriver MI
Love ours!! I didn't buy the option when we purchased our 09 Coupe last year and after driving the car my wife said it was to quiet. I ended up purchasing the NPP exhaust and doing the install along with Sunset Orange's controller. I can have it open or closed via a remote. It stays open most the time except on the highways and we love it. Good luck with yours.
Team Owner
Joined: Dec 2003
Posts: 57,408
Likes: 164
From: queensbury ny
I wouldn't have opted for it if I had a choice at the time.It's ok,certainly better then a non NPP exhaust,but for 1200 bucks at the time,I could have gotten a BASSANI and saved 3-4 hundred.Granted,it doesn't have the baffles,but the sound is second to none and the tips are nice too.That's just my opinion and as one can see,I'm in the minority..
Thread Starter
Racer
Joined: Aug 2009
Posts: 379
Likes: 0
I do want the NNP but If the right car comes along and dose not have it, mabe I should just purchase it anyway...and have it installed at a later date.
Quote.....Ratchet Thunderbolt
Love ours!! I didn't buy the option when we purchased our 09 Coupe last year and after driving the car my wife said it was to quiet. I ended up purchasing the NPP exhaust and doing the install along with Sunset Orange's controller. I can have it open or closed via a remote. It stays open most the time except on the highways and we love it. Good luck with yours.
How much did this cost you?
Thanks
Chris
Quote.....Ratchet Thunderbolt
Love ours!! I didn't buy the option when we purchased our 09 Coupe last year and after driving the car my wife said it was to quiet. I ended up purchasing the NPP exhaust and doing the install along with Sunset Orange's controller. I can have it open or closed via a remote. It stays open most the time except on the highways and we love it. Good luck with yours.
How much did this cost you?
Thanks
Chris
Instructor
Joined: May 2009
Posts: 124
Likes: 0
From: Katy Texas
The answer to the question is NO. But only because it's relatively easy to add on later. Don't pass up a great deal on a car just because it doesn't have NPP.
When I last looked (as I was making the same choice as you), the parts required to add NPP cost the same as the option price (assuming you "shopped" around). Of course this didn't include the labor to install, so it was still better to buy with than without. But I certainly would not have turned down a great price on a car that didn't have NPP stock from the factory.
Other than that it really is a must have option! The only question is should you buy with or add later. But either way you're gonna want NPP.
When I last looked (as I was making the same choice as you), the parts required to add NPP cost the same as the option price (assuming you "shopped" around). Of course this didn't include the labor to install, so it was still better to buy with than without. But I certainly would not have turned down a great price on a car that didn't have NPP stock from the factory.
Other than that it really is a must have option! The only question is should you buy with or add later. But either way you're gonna want NPP.