Hmm, over half the Vettes had no choice! With Grand Sports and Z06 it's standard. Although I don't think it is as good as some of the aftermarket systems, it is cheaper and good enough for me. So even if it were an option on my Grand Sport, would have purchased.

The key for the OP was his question, should he not buy a car because it didn't have it. No problem he can buy an aftermarket system that IMO is somewhat better.

 

Yes, a deal breaker. In fact, I can’t comprehend how some people although very few in numbers say they prefer a quiet exhaust. Really, a quiet sports car

That said, price out an aftermarket exhaust then add it to the price of the car to see if the car is still a great deal.

 

I did just that when I found a real nice new '16 Convertible with all the right stuff and price, but lacked the NPP option. I had a Borla ATAK axleback installed on it and problem solved. $1250 and had it installed for $130.

 

Agree! This car is 2k less than the next cheapest 1lt manual I could find with performance exhaust and I really didn't like the look of that one. I'm assuming ~2k could get a decent aftermarket exhaust.

 

Being able to switch from quite to load seems perfect. Clearly NPP on loud mode is much louder than standard non NPP exhaust but would want to know if NNP on quite mode is as quite or quieter than the standard non NNP exhaust?
Thank you

 

Glad to hear you like the BBE PRT exhaust. I picked up a leftover 2017 1LT, it had upgraded wheels and the spoiler but no NPP exhaust. There were not many 2017 1LTs with M7 left in my area so I took the savings on the deal and figured I would just add the aftermarket exhaust. I ordered the PRT when it went on sale during the holiday. Looking forward to getting it installed.

I had NPP on my last two Camaros but I always wound up pulling the fuse since I didn't really like the way it sounded when the NPP valves would close. To make matters worse, the Camaro NPP valves would rattle, which was really annoying.

 

Probably pretty similar during cruising but normally louder on startup and when you put your foot in it. I think you can put it in stealth mode which keeps the valves closed all the time but it just doesn't sound right in my opinion. In my experience with NPP the best mode is to just pull the fuse and leave it basically turned off.

 

Why don't you strongly suggest to the dealer that he should do that as dealer installed option.

 

I don't understand why everybody is acting like you couldn't change the exhaust system


One of the best things about owning a performance car is changing things about it and then feeling the difference it makes.

the most fun I ever had with any mod was a cut-out on the stock exhaust. You get a quiet cruiser that never makes a peep, and with the flick of a switch becomes a fire breathing dragon.

 

Would be less expensive is to have a muffler shop install a cut-out kit, shown below, than an aftermarket muffler. Only ~$120 on eBay. Reminds me of what we did "in-the-day" using a choke cable to operate! These operate with a supplied remote electrical switch!

Would have to weld into the exhaust pipe before the muffler.




~$120 on eBay.

 

Yep, and also:
Remember you would be cutting into the OEM exhaust system you planned to "throw away anyways" so there is no loss.

-I won a cutout from ebay for $30 shipped once.

 

This is awesome! Never heard of this before!

 

It wouldn’t be a deal breaker for me as there are numerous aftermarket exhaust systems that are louder and sound better. My Z06 came equipped with the NPP. I installed the Corsa Extreme cat-backs a week after delivery, which disables the NPP, and have no regrets... and you can still easily control the volume with the pedal

 

Deal breaker. Don't compromise on your C7 purchase. The NPP is a very well-engineered and integrated system. It's one of my favorite features on my C7, and the only option on mine. Just for comparison, I drove a 981 Porsche Cayman that I considered before buying the C7. It was equipped with Porsche's version of NPP - it sounded great when you got on it, but was loud and droned badly even when turned to quiet mode. THAT was a deal breaker for me. Just shows what a great job Chevy has done with NPP on the C7.

You can have it quiet or loud with the turn of the dial and no droning - I think it is much improved over the C6 system in that regard.

I would keep looking or just order one to get exactly what you want with no regrets.

Good luck & Happy New Year!

 

Keep looking since you asked this question I bet you want it

 

Let me say this....... for any Corvette there is a thing called cold start. When the cold engine cranks as I understand it the car runs rich to heat up the cats. This causes any exhaust to run louder for say 20 ish seconds.

In my case I back the car into the garage each night, have some baffling in the back of the garage, start the car each morning and idle until the cold start goes away BEFORE I open the garage door!!!

Yes it is wake up the neighbor loud... I temper that with coasting down the driveway throwing it into 4th and idling out of the hood.

I think all my neighbors like me....... one who is a car guy asked me to leave on at a regular time.......... as he loves to hear me idle out as he used that as his alarm.

Now that I leave in single digits....... yea it's audible!!!!


UMP...... as other have suggested search the forum for the cutoff option. There are folks cutting off their stock mufflers and running without mufflers and Corsa even sells a kit for the tips. The Cats keep the car reasonably quiet.

https://www.corvetteforum.com/forums...st-review.html

What I HATE about stock NPP is your car sounds like all the other NPP cars..... it more of a truck sound and there is a tinge of droan, yes there is!!! And it cuts out at certain RPMs unless you override the sound management system, but then it is wide open all the time.

Even with my corsa extreme I can control it with my right foot.

 

This comes as news to me. In the two years driving my C7 w/NPP the only other car that sounds like it is another C7 w/NPP.

 

Also, if ease of resale is an issue for you the stock NPP exhaust car will be easier to move than a car with an aftermarket system. Some people look at modified cars with a suspicious eye. I'm not saying that I agree with that view but it is out there.

 

The Camaro SS has had the NPP option for a while. I had a 2013 1LE and 2016 2SS with the NPP options.

The NPP is a nice factory exhaust option for sure but I think the real question is whether you should pass on a car that has everything else you want but the NPP option.

Something to consider before passing on the car.

1. You can easily add an aftermarket setup. Borla, Corsa, BBE, etc. all have nice setups that look to improve the exhaust note. Keep in mind, like most parts on a car GM doesn't make the NPP mufflers, I believe it is a company called Walker or Dynomax.

2. As mentioned earlier in the thread, some folks save the big cost and do a muffler delete. Cut the pipes and have a muffler shop weld on some 4" tips. The 4 cats in the factory exhaust keep the sound level reasonable.

3. Most owners with NPP like how it sounds when the valves are open, which is why it is so common to see folks pulling the NPP fuse. I found it annoying when the valves would open and close on their own based on the drive mode you are in. Even if you hard code the exhaust to Track mode the valves still close at certain rpms and speeds. I find it more fun controlling the exhaust with the gas pedal.

 

Thanks everyone! Dealer actually called me this morning to say they got a 2016 2LT in as trade with less than 1500 miles and would sell it for about the same price. Its a top 3 color combo for me. Gonna go look at it tomorrow if the weather improves. Not sure what ill do.