Mad*Max

I'm still waiting for my car - just how loud is the NPP in track mode? Is it significantly louder than the stock base C6 exhaust?

Barnwood

My is set in Track Mode all the time, wife doesn't complain, all is good

bigblock427

I switch between Track and Sport.

JerryU

Yep, my wife doesn't complain as she is seldom in the car! Also when she is, I have to drive like an "old man" and don't often get over the ~1700 rpm, when the butterflies open, with any significant throttle- so it's not loud! I also have to shut off my sound system that starts playing one of >1000 songs in shuffle mode when I start the car. My method of dealing with the excess tire and road noise. Just as well I drive by myself 99% of the time!

When we go out together I drive her BMW X5 SUV, which I like but have to listen to one Broadway Play or another stored on it's hard drive! I miss Janis Joplin, Meat Loaf, Bob Seager, the Four Season's, Stevie Nicks, etc etc that play in mine!

RE: Sound Level. Sure, it's louder than my C6 NPP when the butteries are closed, which would be like a base C6. But mostly louder when there is significant throttle. About the same as my C6 Z51 w/NPP BUT there I added a simple toggle switch so I could have the butterflies open when I wanted. Had to flip the switch on the Interstate or the drone was excessive. I just keep mine in Track Always Mode so don't have that option of a manual adjustment, toggle switch or Mild to Wild remote relay.

Frankly NPP, even when open is no great sound, IMO! The Flowmaster's I had on my Truck and the Borla's I put on my 1st Vette sounded better. So did the Borla's my friend had on his C6 when I had NPP in mine! That is why you see lots of folks adding what are called "crossovers," which is the same crossover as OEM BUT with the secondary CATS removed. IMO you are not going to match the quality sounding products made by Borla and others. NPP is OK and since It's cheaper than adding a quality aftermarket system and comes with checking a box (or buying a Grand Sport etc) I live with it!

Pic left is an OEM crossover with secondary CATS. Right is an aftermarket "crossover" that eliminates the secondary CATS. Vette's have employed crossovers for performance for years!

dbaker

Fuse pulled at dely in 12/16.Been out since.

\db2

owc6

Yes, it is significantly louder than the stock (non-NPP) LS2 or LS3. I wouldn't call it aggressively so, but it is louder. I don't know how it compares in Stealth mode (my '14 doesn't have that), but it is louder (slightly ) even in Tour.

Foosh

I was sitting at a Shell station filling up (not in my C7) when OWC6 was motoring around a traffic circle and accelerated aggressively coming off the circle. It is LOUD and sounded great!

It's a bit louder than NPP Track, but the main difference I heard was a deeper bass tone for a throatier roar.

joemessman

Yep! That's why they have wheels and a motor.

gmarcucio

I don't know if I have Stealth mode on my 19 Stingray with performance exhaust. I don't remember seeing that mode and I'm not by my car now to check it out. That's all I know is I have it set to the loudest which I believe is track and I leave it there. If I had to wish for anything better it could be a little louder but not worth it for me to swap the exhaust out and then have it too loud.

Skid Row Joe

What are Bullets?

Skid Row Joe

It's found on your touch screen under Settings. Ask a Service Advisor or mechanic at your store to show you.

owc6

B&B (Billy Boat) is an exhaust manufacturer. They make a range of car exhausts, the loudest if which are Bullets. They are arguably the loudest, most aggressive exhaust available for a Corvette.

ALEXAMES

Daily driven...exhaust in track mode!

ALEXAMES

My C6 with Corsa Xtreme and Corsa Xpipe sounded better.....

OH THREE Z

18%, headers no cats and corsa extreme...


you dont have an poll option for my car

Corvette ED

Track mode for me

Skid Row Joe

That's what I'm looking for. Do you know if the mufflers are as Flowmasters? Where they open up with increased throttle? I'm looking to get away from the tinny, plasticky, somewhat sissified high pitched import sounding exhaust like Mustangs have. The NPP on Track to me, is getting there - but it still isn't the deep sound I'm looking for. The problem is, you may not be able to tone it down on demand. And therein lies the
problem. Too loud at ALL RPMs.

wadenelson

I usually leave it in the neighborhood, about 2 in the morning.

owc6

The Bullets delete the NPP, so if you won't to be able to"turn down the volume."

This is not for the timid. People either love it or hate; there is no in between.

Skid Row Joe

Thankfully, since NPP doesn't do it for me, I lucked out getting an in-stock non-NPP C7. If they offer various sound levels, that's what I will need.