HA! You were probably thinking you were going to see some stupid thread like “..what’s the best header..” or some dumb $h!t like that but no, this is a different question. Have any of you who have done your header already ever looked in it to see how its bottle necked? I’m going to post up a “graph” and let me know how your aftermarket header was constructed. (pardon the Microsoft paint diagram i wipped up)

 

Do you know anything about fluid dynamics?

 

Yes, but I’m interested in seeing how hi end aftermarket headers applied the physics of fluid dynamics. (IE. how much of a lip if any was used)

 

this should be interesting

 

Anyone got a borescope?

 

why?

 

I was joking. One can't see what the OP is looking for without one. Despite the relative affordability of low end borescopes these days, I doubt anyone here has one. But if they did I guess they probably would peep inside their nice new header before they installed it. I would if I had a one.

 

sorry, i was asking the OP - why?

 

he also doesn't know the meaning of "graph". what he posted was a diagram.

 

(fixed)

 

I was looking at a stock ap1 header and it's built like diagram B's internals, vs a Megan racing and T1R header that i also looked at that are built like diagram A.

 

I actually do have one. I used it back in the day when i was in construction putting myself through college. The company bought it for us, LED's and all.