At SVX Network Site:

http://www.subaru-svx.net/forum/showthread.php?t=29386&page=1

 

Thoughts, comments? Perhaps a valve can be installed in the line to regulate how much air gets bypassed. I would only recommend this if you had an EGT gauge, dyno tuning time and/or a wideband. Of course you'd need a way to add more fuel to keep things in check.

I didn't take into consideration that our cars are boosted. The bypass wouldn't work because boost pressure would blow out of the bypass tube. Hrrmm, I'll think further on this.

What about doing it like Skip?