Npp
Drifting
Joined: Apr 2013
Posts: 1,743
Likes: 453
From: Saint Clair Shores Mi
The 2015 NPP sound management setting doesn't have an "Off" position like the 2014 does. I'm assuming the "Track" setting is the equivalent. I pulled fuse #42 (as a lot of guys here recommended) in the front fuse box, and the NPP valves stay open all of the time. I have an A8 so it does cycle the AFM valves from V4 toV8 in all modes (Touring/Sport/Track) regardless of the fuse pull. I understand it doesn't do this with the M7. Sound for the most part is acceptable and much better than the clank and clunk of the NPP valves cycling constantly. You can lock out the AFM mode with the A8 by (especially on the highway) by selecting the M position (paddle shift) if you have a automatic.
Last edited by kenownr; Dec 5, 2014 at 08:12 AM. Reason: additional information
Drifting
Joined: Apr 2013
Posts: 1,743
Likes: 453
From: Saint Clair Shores Mi
By the way; don't pull the fuse for the AFM Valves; per several very knowledgeable person here on the forum, if you do you will get a "Check Engine" light right away and it can be hard to clear even with AFM fuse back in.
Le Mans Master
Joined: Feb 1999
Posts: 5,353
Likes: 100
From: And then it was said... "let there be blue Corvettes and yellow Camaros" Ft Worth Texas
Cruise-In IV Veteran
St. Jude Donor '09
Go to Settings on the nav screen. Select Vehicle. Select Driving Mode. Select Track. The exhaust will now be in track mode.
