nice job on the pipe angles, but it looks small in diameter, and thats an awful lot of spiral flex. theres a ****load of turbulence with that stuff, and i wonder whats going on there under high rpm flow and vacuum. i'm not saying im right, but boy that looks like youre squeezing the airflow with that design. id try to eliminate as much of that blue **** as possible. did you do any cfm calculations? an engine is nothing but a huge air pump.