I just installed my Apexi AVC-R in my 3dr. Took me a bit of searching for the right ECU plug out diagram but thanks to PF I found it.
Apexi has heaps of features. Selectable boost programs, rev range boost programing, gear selective boost programing and a heap of eye candy gauges and playback functions. Bout the only thing I miss out on is the unit speedo as the Seirra doesnt have a speed output from the ECU. Again.. Pricey, but good
Fits real nice in the dash too!!