looks like a cool device the modding afr's concers me though as the comp in our car is learning one, and the way this makes the AFR mods would be to vary the voltage on the map sensor signal. just think about what the comp is going to be doing all day!!! and lets not get started about the losses in power in changing the lift points.
I think the best mod on our cars is to have the tune done in the ecu itself via the eprom (you'll need to get handy with a soldering iron here :) ) and whilst at it lift the rpm cut to 9000 !!! that would be cool and possible! but who can be bothered! :)
Though one other trick for a power gain (modding the AFR and Timing) can be done for around 50c to a dollar. i know it sounds crazy but very possible as well, and its done by envoking part of some standard maps in the ecu i.e a tune that Toyota have actually coded into the ecu so your not putting anything at risk as well, and from some playing around it added timing and leaned out the mixtures so basically what every one is doing with the piggyback computers but for a total cost of about one dollar :) when i'm happy with it i'll let everyone in on the idea. ;)
keep TUNENED LoL
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hahah
secret stuff huh!!!! ;)