alpine good idea...with valve open wacker will be batmanize again:-)

 

Fabspeed valvetronic seems to be basically a "gundo hack" (short-cut pipe from muffler inlet to outlet) with a valve stuck in the short-cut pipe.

You could easily do this to stock gundo-hack mufflers using a DMH or QTP cut-out valve.

(I've been thinking about this idea for a while and am gathering more info, that's why I just found this thread)

IMO the Fabspeed Valvetronic seems to be a decent deal at $2k. I just think that even closed, the "Maxflo" mufflers are too loud, I would prefer the completely stock quiet sound when the valve is closed.

 

Can someone post the video link, the current one listed isn't working. I'm thinking about getting this setup
Thanks