PCV has closed loop but only for $400 more and it still is a piggyback unit

 

I can get you Thundermax for a great price if you decide to go that way. PM me for pricing. I run a power commander myself. As far as simplicity Thundermax is great, but youa re paying for the auto tune functionality of the unit. It is pretty simple to load a power commander with a map. TTS is a great system and takes a little time to learn, but is not really "complicated."

 

I bought a Tmax. 600 km later and it is tuned as close as can be got. Runs great, no issues with gauges, maybe that's an older issue? Nicest part I don't have to pay my stealer to tune it. If you can get a good price I think it's worth it.