IC piping size

[originalsin]

what do you guys think is the optimal diameter for fmic piping? i know the hotpipe is usually smaller than the coldpipe, i was thinking like at least 2.5" for the coldpipe, possibly 3"?? and the hotside liek 2.25" or 2.5"?

ill be pushing like 12-15psi hopefully making like 225hp or around there

[c-rad]

2.25"..... 2.5" MAX

[teddy]

i'd use 2.25" all the way around

[CA_OWNZ]

i have the same question, but my goals are a bit more, when im done im aiming for about 350 rwhp, should i do 2.5 all around?

[teddy]

The max you would want is 2.5"...2.25 would still even be alright for what you're shooting for.

[CA_OWNZ]

thanks teddy