I have seen/heard mixed results about doing a water/meth injection kit on a non-FI engine and I want to know if it is something I should get. The only mod (as of now) done to my 07 coupe is a cold air intake.

Would a water/meth injection kit be worth the 450 ish price tag on a naturally aspirated engine?

If not, what could I do to increase hp on a budget? I’m new to VQ engines so I’m trying to figure out my best options.

Thank you!

Best bang for buck power for these cars is nitrous. Other than that its gonna be turbo or superrcharge, but those are pricey!