Hello experts!

I am about to get E85 tune for my evo 9, my goal is 400/400 with stock turbo with 274 cams.

First, do I need aftermarket fuel rail such as one made by AEM or Agency Power for this power range?

If so, could you give me some advice on fuel rail?

Thank you!

 

No fuel rail needed. You will need bigger injectors however.

 

Stock one has been proven to hold like 550-650 hp I believe. Its somewhere in that range.