Hi, I'm looking to replace my stock turbo with something that can provide around 400whp.
​​​The engine is built but the manifolds and everything around are stock, and I want to keep it that way so I'm looking for bolt on options.
The main goal is to keep the car street and fun to drive, a quickest spool possible.

I also came across Arashi turbos. Somebody tested them?

 

What fuel do you plan to run? I think thats a pretty big factor.

If pump gas, you'll need something FP Green or bigger. That is what I ran on my stock motor and it was a great turbo. 400hp on 91 and 500 on E85.
If you plan to run E85, you can probably get away with something like the FP HTA71. That will have a bit quicker spool than the green but will only touch 400 on E85.

 

I'm going to run with 93 octane only
What about the the td06hr-18k? They seem to be not too big, not too small and to provide enough power

 

Oop, that one wasn't an option when I was looking so I always forget about it. It is slightly smaller than the FP Green in terms of flow; 54 vs 57 lb/min. I would expect that to get you to that 400 number on 93.

I'd go dig around the dyno section for setups with that turbo to confirm though.