Originally Posted by Grabber Blue5.0
Definitely 1 7/8 but keep in mind because the Kooks are a mid length equal length header they are much harder to install over many of the longtube headers out there. Not for the faint of heart.
Can you explain a little more for my knowledge. I never understood the measurements for the headers. And what's makes kooks different other than being equal length header. Sorry if it sounds like a noob question.
Sent from my iPhone using Mustang Evolution