Tahoe Dave

I have a 2005 C6 and I am considering installing a forum members 2007 Z06 Bi-Mode take off mufflers. I know I will have to deal with the 2.5" to the 3.0" transition. I understand a "good" muffler shop can handle this.

My question is, until I install a "mild to wild" device, with no vacuum hooked up, will the exhaust be mild or wild?

Thanks for your help...

PaulEddie

Not trying to hijack this post, but I also have bought a used set of Z06 mufflers. They thru in the H-pipe. Is there any chance the Z06 H-pipe will bolt up to the standard C6 cats. If not, do you think anything would be gained if I cut the std H-pipe right behind the bolted connection and ran the 3" Z06 H-pipe.

To answer your question, they will be in the wild mode with no vacuum.

cylon

mild, u need NPP in a box

Tahoe Dave

Well, I got one "mild" and one "wild" I need a tie-breaker

tim414

It depends if baffle/flap is closed or open. Mild is closed, wild open. You really should'a got NPP in a box....I had '09 Z51 Roadster w/NPP (sold) and now '10 Z06. Trust me when I say this.....NPP in a box will give you a few more ponies and use you same 2 1/2" exhaust. It sounds excellent....I got lots compliments....the 3" exhaust will not gain you anything (LS3) unless your doing other engine mods. Z06 mufflers and NPP are different in that the perforations in the system are in 'Z's muffler and NPP in tailpipes. Baffles located same on both. You need the vacum etc to make it work....thats why I say for the money you can't beat NPP in box....and I had factory NPP and now a 'Z....

T's C6

Tahoe Dave

Okay, I think I'm getting it. Is the NPP In A Box the controller that opens and closes the baffles, or is it a complete and different exhaust system? If it is the controller, I would definitely be purchasing one and having it installed.

T's C6

tim414

It contains EVERYTHING you need to go from C6 stock/base exhaust to NPP/Bi-Mode (would not need Z06 mufflers)....then, you can add mild2wild controller.....same for NPP/Z06....

haljensen

Engine vacuum CLOSES the flap so; no vacuum = loud.

NPP in a box and M to Wild are one manufacturers names for their exhaust controller. There are at least 4 Companies that make exhaust controllers.

My preference is for http://sunsetorangecreations.com/

LOUSVETTE

Definitely WILD until you install NPP in a BOX - Works great