For a motor making 350-375 HP( Flywheel) what size primary would be required ? Then lets say a tri-Y design what size secondary would flow that kind of air asuming a 2.5 " collector is used.
I guess this would be a good Question for Mr. SMS. I just don't know how to get hold of him. Thanks!

 

OH, This would be a one off header, I don't want to step on any one toes

 

Not to flame, but asking about headers in the FI section probably won't get too many responses. Try the ITR or Integra forum.

 

I did, I just figured they might be some High HP supercharged guy here , But thanks !