hey man, I don't know about the venom stuff, but they're a reputable company so I'd assume they make good stuff. I don't know if they trick the ECU or under certain conditions replace the ECU maps with those created for making more power.
I have a Jet Chip on ebay right now that I will sell for $80 (US) + whatever shipping is. PM me if you're interested, otherwise here's the
link.