Just got a G35 and I want to beef it up. Nothing over the top just something that will get much respect from the g35 community. Any suggestions on build and what should my budget be? Want at least 400hp

 

Welcome bemi, do you have pictures?

 

Welcome, 300 is a stretch NA with these but doable, 400?? Better get boost bruh

 

Welcome to Driver!
I highly recommend the Forced Induction Section.

Supercharger or Turbo kit will get you there for sure.
Not cheap but very doable.

Honestly I'd sell this car and get an 07 and up G for Forced Induction.
They have the much better motor and seem to be more boost friendly vs. our older VQ motors