Electronic exhaust dumps

[shweetpickens]

A shop near me can install electronic switchable exhaust dumps for me.  I figured right before the mufflers (like a muffler delete without the delete) would sound good as ive heard a few muffler deletes on youtube that sound good.  My question is, would there be a better spot to put them? Pre cat or pre resonator maybe?  They would have an on off switch so it would sound stock with them switched closed.

[glock-coma]

I believe mike from ecopowerparts.com created some for his flex.
He had his installed  pre 3rd cat/resonator and had some pretty nice power gains at wot.
Somewhere around 25 hp

[glock-coma]

And his were boost pressure activated, 8 psi they would open

[shweetpickens]

I read about that after posting . So basically a cutout right before the resonator, which is the "3rd cat"? Same thing?     I saw a few Universal ones that look like they might work.  One from qtp looked good. (I think that's the name)