Whats up yall I'm new here and just want to know of a good tune for my car I'm completely stock right now

 

Hey, welcome to the forum.

Lots of info about tuning here: https://www.myg37.com/forums/ecu-tuning-dyno-data-409/

...where I'm moving your thread.

Opinions will vary, but pretty sure most people will advise that an off-the-shelf tune on a bone stock G37 will be mostly pointless. And not cheap... hardware, license & tune file.

 

You can contact Rsenthapy for a tune.
I would suggest some aftermarket drop in filters at least, a performance tune of stock components will give you some decent power and is able to offer additional fuel efficiency.

It's quite a financially heavy option.