Time has almost come to tune the Z. Just need to finish my exhaust off and then it's time.

I'm not chasing a massive jump in HP, just looking at cleaning up the AFR's and maybe playing around with the timing a little. My last trip to the dyno noted 11.1 AFR's which struck me as being a little strange as my research has basically shown that everyone else with my mods ends up running a little lean.

Looking for input from unichip owners/tuners as to their thoughts on it. I know that there are better options over there, uprev, technosquare etc etc etc, but down here there just isn't the same availability. And as for Haltech, Fcon, Emanage etc, they are way out of my price range at the moment, although I would love to go that way, I just cannot justify the buy in price, + install and tune at the moment.

Current mods on '03 DE motor:
Plenum Spacer
Popcharger + CF intake pipe
Custom y pipe
Hitech y pipe back exhaust
HFC's to be fitted before tune.

Thoughts? And yes I have searched but only seem to find posts that say upgrade to haltech, uprev etc.