So those of you that have a tune, is it definitely worth the $500-600?
Any reason one tune is superior to the other - InMotion or Eurocharged/LET?

Still debating on doing this. Note that I am running the NW single CAI, ASP 178, and a PTE therm.

From what I gather, adding a custom tune to my current mods would make it quite the beast. Any disagreements with that?

Gracias.