[NaregQ60]

What kind I do to improve the throttle lag?

any intakes?

 

[qsixzero]

Probably something more along the lines of some sort of ecu flash like the 370z.

 

[infinitifanatic]

ecu flash is probably one of the better things to do but it is very likely to void your warranty, so if you ever need to take it into the for some issue that involves them connecting to the computer make sure you revert it back to oem spec.