I seem to remember seeing a website that sold a butterfly valve that had a dozen or so positions controlled by a switch that could be installed after the cat converter for bypassing the muffler. Does anyone have info on this or remember seeing it?

 

This?

http://www.quicktimeperformance.com/qtec.htm

 

I've seen this one, but I seem to remember one with a dial switch that had like 12 positions or so. This one looks like its either open or closed, no in between.

 

you dont mean an electronic cut out do you?

 

ya i was thinking electronic cutout as well...

 

Anyone see the episode of Trucks where he installed the electirc cutouts? They were some kind I havent seen before. They had a sliding valve instead of the butteryfly kind.

 

QTEC: Quick Time Electric Cutout



Disc, the QTEC may or may not have a dial but it can be set in-between open and closed.

Text from that page:

Open your exhaust with the flip of a switch. Run it closed, run it all the way open or any position in between.

 

This one, the QTP, has a infinite number of settings I believe.

Go to the QTP site and click on 2000 Grand Prix GTP, that is a good video of the cutout in action.

 

Its called a QTEC, you could get it here www.quicktimeperformance.com