Hey I was just thinking about 4-1 header designs, but dont know which one is better. Im sorry but I dont know to post pics, but the Kamikaze header has the 4 pipes merge right after the exhaust ports, whereas the DC design has the collector about where the oil pan is. Kamikaze claims 4-5 hp more than DC. I had Kamikaze on my f22 but never DC since they dont have the 4-1 for the f22 or h22a. Or maybe something like the hotshot headers, but thats only racing applications and not bolt on. I would guess that DC would provide more torque and Kamikaze more top end, but im not sure about the designs. Thanks guys

 

the kamikaze has a 2.5" collector, which is good for topend.

 

do the longer pipes before they merge in the DC design make it better for low end?