NPP Issue
Oct 23, 2013 | 05:08 PM
Thread Starter
Racer
Joined: Jul 2013
Posts: 314
Likes: 65
From: Philadelphia Delaware
NPP Issue
When I ordered the optional exhaust, I expected a mild to wild option menu.
There's not much difference at all when I change from mode to mode.
I ordered the 2LT M7 without the Z 51 package.
I have gone through the infotainment menu and switched the exhaust driving mode to "off", and this did not make a difference.
Hardly noticeable when it goes from eco-to sport.
Has anyone else had this issue?
Oct 23, 2013 | 05:19 PM
Le Mans Master
Joined: Sep 1999
Posts: 7,810
Likes: 414
From: FL
Yours may be not working. I have a Z-51 with the NPP and there is a major difference between touring and sport/track modes.
Mine barks, backs off and sounds nasty when open. I would make sure your electric NPP exhaust is working.
Oct 23, 2013 | 05:32 PM
Burning Brakes
Joined: Jan 2013
Posts: 755
Likes: 2
From: Valencia CA
You can tell if there working just by looking at the baffles in the rear. The two outer ones should open when in sport/track. The difference is definitely noticeable.
Oct 23, 2013 | 06:37 PM
Melting Slicks
Joined: May 2013
Posts: 2,234
Likes: 30
From: Fairfax VA
You should definitely notice a different sound.
Oct 23, 2013 | 06:55 PM
Burning Brakes
Joined: Mar 2013
Posts: 1,135
Likes: 14
Oct 23, 2013 | 06:55 PM
Melting Slicks
Joined: Oct 2004
Posts: 2,863
Likes: 150
From: Woodland CA
With the car on, be in sport/track mode and look at the exhaust tips. Is the baffle open or closed?
Here is a video of someone switching between the modes. You can tell the difference.
VIDEO
Oct 23, 2013 | 07:07 PM
Le Mans Master
Joined: Oct 2004
Posts: 9,217
Likes: 153
From: Ft Mill, SC
You sure it came with the NPP ?
Oct 23, 2013 | 07:12 PM
Racer
Joined: Jan 2013
Posts: 292
Likes: 4
Quote:
Originally Posted by
Homer3D
With the car on, be in sport/track mode and look at the exhaust tips. Is the baffle open or closed?
Here is a video of someone switching between the modes. You can tell the difference.
VIDEO
Would have been exceptionally nice and well received if that Damn Cam in the back ground wasnt getting us excited.....crap
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Oct 23, 2013 | 07:17 PM
Race Director
Joined: Aug 2000
Posts: 14,860
Likes: 3
From: 96598
can you guys us the stick or pencil method to keep the butterfly from closing.
On a BMW a BB would work in the vac line
Oct 23, 2013 | 08:25 PM
Melting Slicks
Joined: Jun 2009
Posts: 2,867
Likes: 66
From: . Wyoming .
Quote:
Originally Posted by
DocHolliday
You should definitely notice a different sound.
the difference is dramatic.
Oct 23, 2013 | 08:50 PM
Thread Starter
Racer
Joined: Jul 2013
Posts: 314
Likes: 65
From: Philadelphia Delaware
There's a slight difference. I guess I just thought it would be more dramatic. Definitely has NPP. I pulled both the left and right fuse, and that didn't make it louder either. I remember when I pulled the fuse on the Hertz rental Corvette convertible in 2010 and that was pretty raucous. Loved pulling up behind a slower car and dropping down 2 gears. The sound alone would have them scurrying out of the way!
Moral...Don't buy a rental!