Hooker header size vs SW headers

[saunacrank]

anyone know the size difference in headers>? THe hookers look a little smaller to me, maybe I'm crazy though.Wish there was comparison tests so i knew which made more power

[trapin]

My SW's are beefy. The tube diameter is an inch and 7/8's and the flage is a half inch thick.

[Vegas69]

They should be listed by primary and collector size. I am running 2 1/8 primaries and 3.5 inch collector.:bananna2: