I am considering the NPP option on a new GS. Cost is $1,195. Would like to know your opinion on whether this option is worth the cost. Also, how does the dual-mode work? Is it controlled by the driver or does it function automatically?
In my 09 the dual mode works with vacuum solenoids opening ports on the muffler to make the exhaust louder. This happens automatically at around 3500 RPMs. It can be annoying sometimes and other times it sounds awesome. I bought my car used and the original owner had added the Mild to Wild option which allows the ports to be open all the time. The jury is still out whether I would miss it or not. My last one, an 07, did not have this and I was always happy with the sound.
I have it on my 09 Coupe. The main reason I bought it was that whenever I trade I always seem to go to an Aftermarket Exhaust system and this was much cheaper than the Corsas I had previously used. This also allowed me to have one less exhaust system filling up the needed garage area. The NPP gave an extra 6HP and gave the car a liitle sound when past 3500 RPM. I did go with the M2W and glad I did. This allows me to let it work as normal or the deeper sound all the time. And at the push of a Remote Control Button. I willl get the NPP on the next corvette also if that helps you... Good Luck...
I will the the devil's advocate and say NO. For at or near that cost, I prefer to install an aftermarket cat-back that will sound a lot better, tips look way better, and is lighter to boot. Sure you do not have the dual mode option, but a Corvette is meant to be heard, and not to sound like a Honda Accord or Toyota Camry
Have you tended to put aftermarket exhaust on your previous cars to get a little more tone? If yes then read on. If no, then you probably don't need the dual mode exhaust.
When you did put that aftermarket exhaust on your other cars, did you have a hard time finding the right balance between throaty sound and too much drone on the highway or when you want to talk? Perhaps you went through a few different exhausts to find something you like?
If you answered yes to everything above, then the NPP is worth every penny.