hey thanks for the info !!! got the JBA,s for 400$$ brand new, ground clearence is a bit of an issue where i live , so i wanted the mid-lenght an not long tubes ,, a lot of hill,s over long tubes ,sure i wont get the full HP & TQ of S.S works header,but those SS work header where so expensive $$ Is the EGR pipe threading the same size from the JBA header thread,s as the marauder???