I have read about all kinds of headers on here, but i want to know if anyone has compared different headers on the same engine to see if there are advantages or disadvatages to different designs.

I'm seriously considering the thorly cause i know the try y design to be a tested torquey design, but by the same token the OBX have a nice price. Roger down at VHP told me to go with mid length, I think its because of thats what they sell, but their c-5 and c-6 headers are the try y again.

I just want to get the most that i can.