New fuel injectors
 

does putting new fuel injectors do anything to your car like if i out 550cc injectors in it will it help with perforamce?

you don't need new injectors unless you're at 80% of the existing ones. which means you need to be close to 300 whp.


your stock injectors have more than 1/3rd more capacity than a stock car can make use of. upgrading to larger injectors isn't going to do squat for you.

On the stock ECU...it won't run... You could make them run with a reflash........BUT

With NA..you don't need them..you have more than enough fuel

Turbo...you would need an upgrade for over about 300HP

If you're over 300hp (aka fi) you will need... Wait, was that already stated?