wanting everyone that can or has acces to measure as well as you can the inside diameters of different headers from dc to hytech to bisi to anr , 10-94, smsp etc. please give exact model and best measurements.

include collector size as well, and maybe 1 pic each of the general outside frontal view of the piece. thanks guys. im just a curious one i suppose

 

Im just as curious as you, i would like to compare them as well.

 

???

 

theres got to be more interest in this.

 

I believe SMSP, DTR, and Hytech have their OD's posted before. Either by them or customers. Just find the gauge of the material and you'd find the ID.

 

ok lets get those #'s posted here.

 

from AN-R's site "Equal Length 2" Primaries " for the standard, compact, and side exit b-series headers.