s2konroids

Okay im about to get a either a greddy blue or greddy ultimate, however im confusued as to which cables/looms i need. I have a MY00, with 4.57r gears, testpipe and snokle+modified/gutted airbox. We will splice the existing ecu cables.

My tuner has tuned plenty of blues but not an ultimate. He has the support tool, and USB cable to connect to the greddy blues, is this sufficient to begin tuning? (i want to do timing and fueling)

I'm confused with injector harness, pressure sensor harness etc etc.

If you look at these on ebay would it be sufficent to just get this? : http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...:MEWA:IT&ih=012

Or would i need this? :
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...:MEWA:IT&ih=012

Thanks in advance