NPP mild mode?
Thread Starter
Intermediate
Joined: Oct 2010
Posts: 43
Likes: 2
From: TX
NPP mild mode?
The NPP exhaust option on my 09 C6 is great; but there are times when I would prefer to have the option of a mild only mode (similar to a mild2wild switch). Does anyone know how that could be done?
ps did a search on CF but did not find anything.
ps did a search on CF but did not find anything.
Advanced
Joined: Jul 2003
Posts: 54
Likes: 5
From: Saint Marys PA
There was a post some time ago that described putting a split collar on the operating rod of the exhaust tip which essentially held it open about a quarter of its total travel. I tried it and it gives the car a more aggressive sound than totally stock but not the wide open sound of totally disabling the NPP. The only problem is a slight drone at low rpm with an automatic (mine is an auto). Probably wouldn't be a problem with a 6 spd.
I wish I could tell you the exact size of the collar but I failed to write it down. I bought 3 different sizes which looked about right and one of them fit.
Hope that helps you out.
ED
I wish I could tell you the exact size of the collar but I failed to write it down. I bought 3 different sizes which looked about right and one of them fit.
Hope that helps you out.
ED
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
Thread Starter
Intermediate
Joined: Oct 2010
Posts: 43
Likes: 2
From: TX
Guys, thanks for your responses; but it looks like my question as poorly worded.
What I would like is a switch that prevent the baffles from opening; but lets me switch back to normal operation when I want.
haljensen is right - disconnecting the vacuum opens the baffles.
Thanks again for taking the time to respond.
What I would like is a switch that prevent the baffles from opening; but lets me switch back to normal operation when I want.
haljensen is right - disconnecting the vacuum opens the baffles.
Thanks again for taking the time to respond.
