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Discussion Starter · #1 ·
So I have a TPW of 4/28 so long as the boys don't strike. That said, I want to make a change and add NPP exhaust to my order. I know you're not supposed to change, or can't change the order past code 3000. Is there ANY way around this?

:mad:
 

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So I have a TPW of 4/28 so long as the boys don't strike. That said, I want to make a change and add NPP exhaust to my order. I know you're not supposed to change, or can't change the order past code 3000. Is there ANY way around this?

:mad:
No, but even if there was, you would have to come up with the difference between the old price (assuming you ordered before the price increase,) and the new price, as it would become a new order.
 

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Discussion Starter · #3 ·
No, but even if there was, you would have to come up with the difference between the old price (assuming you ordered before the price increase,) and the new price, as it would become a new order.
That's what I thought. I guess I can try my Dealers parts department and have them either order it, or if they have it in stock, buy it.
 

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CGStingray14 said:
That's what I thought. I guess I can try my Dealers parts department and have them either order it, or if they have it in stock, buy it.
Unfortunately non-NPP cars will lack the wiring harnesses for the rear valves as well as the programming in the BCM/driver modes/Engine Sound Management. Adding this in, even if possible (and current tech discussions on this say no), would be very costly; likely more than aftermarket systems.

However, if you don't need to actuate the NPP valves, then it wouldn't matter if the car knew it was installed. I've seen a couple used NPP systems go up for sale for those going aftermarket. I'd bet the service parts new would be much more than the option price.
 

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So I have a TPW of 4/28 so long as the boys don't strike. That said, I want to make a change and add NPP exhaust to my order. I know you're not supposed to change, or can't change the order past code 3000. Is there ANY way around this?
:mad:
There is no way around this, i.e., the car will be built as spec'd at status code 3,000, get shipped to your dealer with those exact status code 3000 specs. If your dealer is willing to sell it to someone else, and give you a future allocation (your starting over), that is the only way around this. OR, you could wait a little bit until an aftermarket vendor comes up with a value to have their exhaust be changeable -- but it will not be through the DMS, but through a separate key fob or switch.

Sorry this is not the answer you wanted.
 

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Have we gotten a definitive NO to the question of retrofitting NPP? I don't think we have, I think there has been a lot of supposition but nothing from the people who would know (Corvette Team, not a dealer parts manager) whether it can be retrofitted. If we have then I didn't see it.

This should be a question brought up at the Bash.
 
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