I'm the cousin. I got this chip to try but when i opened my ecu case i found that there was already a chip soldered in and stapped vailside ( was told my Z was Quick) but i de soldered it anyway to try the Innovative autosports. i put in a piggy back slot and tried the new chip.
went well but not as good as the vielside one and 1/4 mile times were 13.2 ish where as the veilside chip put me in to the 12.89 bracket.
I have had my Z for 10 years and the vielside chip was in it b4 i baught it so maybe it was mapped on the car but all i know with the other mods i have done including a unique way of using two bleed valves :x: the turbos hit hard and it goes like stink!
Oh i did destroy it once on the 1/4 mile melting a piston on my way to tuning it (23 psi on standard pistons DOH!), which left it dead for 2 years till i got round to stripping it and rebuilding it, but its been fine for last 4 years as i am now more conservative with the boost. ( 7 to 18psi depending on fuel and abient temperature) a real street sleeper plain, no external mods to add wieght and wind resistance or a big spoiler to act as a wind break lol.
should of asked ur cuz plonker!