Kook's Headers
 

What does Kook's Headers mean when they say "stepped" form 1-3/4" to 1-7/8"? Does it mean it comes off the engine as 1-3/4" and then grows to 1-7/8" before arriving at the collector? And is there a big difference between 1-3/4" and 1-7/8" headers?

yes. and no. the larger piping will be better for the high end. if you plan to go heads and cam or larger cubes its best to get the bigger headers.

Well those are on my list of things to do in the future. I would do it now but the money I am making on my deployment gets to go to the loss I am going to take on my house when I sell it 1.5 yrs after I bought it because I am moving.:bang:

then do it once and be done. get the 1 7/8's and be done.