NPP Exhaust change
Thread Starter
Racer
Joined: Jul 2010
Posts: 492
Likes: 3
From: Sutherlin Oregon
NPP Exhaust change
I would like to put NPP exhaust on my base 2008 Convertible. I have S&S exhaust on it now. My better half says it drones to much for her.
Trying to find a happy medium. Is it a big deal to change over, and what are the steps?
Thanks ahead of time.
Jer
Trying to find a happy medium. Is it a big deal to change over, and what are the steps?
Thanks ahead of time.
Jer
Racer
Joined: May 2017
Posts: 478
Likes: 105
From: Diamond Bar Ca.
If you didn't do any mods to the exhaust when you put the S&S on (I'm not familiar with those) then you basically find a take off set of NPP's and install them from the axle back. Pretty simple replacement, again assuming you didn't modify your exhaust and the S&S is an Axle Back system. You will need to run a vacuum line to actuate the valves in the NPP mufflers. Do a search in here or the General Topics section. There's lots of info on this subject.
Safety Car
Joined: May 2016
Posts: 4,669
Likes: 1,849
From: Erlanger, Kentucky
A still very quiet with no drone setup that I have on my car (a 2011 Grand Sport) is the NPP exhaust with a set of catted American Racing headers. Little louder than stock when idling and cruising but when the NPP valves open above 3500, it is freaking mean, race car!
Melting Slicks
Joined: Dec 2018
Posts: 2,385
Likes: 939
From: PNW
Find a set of NPP muffs off a 2008 base C6 and get you one of these to make it work https://www.nakidparts.com/c6-corvet...etrofit-system
Last edited by jimijam; Feb 4, 2019 at 09:34 PM.
