I currently have dynatech 1 3/4" to 1 7/8" headers on my 422. I found a set of straight 2" kooks for sale and wondered if they would benefit my setup.

 

Kooks makes a 2" straight header? They told me that 1 7/8" x 2" stepped was the biggest they made. Are you sure that's what they are?

Those might be just a bit big for a low reving 422, IMO, but I'd be curious to see how they work.

 

Sounds like straight 2" https://ls1tech.com/threads/showflat...=7&fpart=1

 

If they really make 'em in 2" straight, then I'll have a brand new set of stepped ones for sale.

They're not listed on their website, btw.