ARC can provide on approximately a 7 day turnaround, custom exhaust header flanges, accurately and cleanly laser cut. No daggy edges that accompany flame cut flanges. Each set is custom drawn to suit your specifications and you own the rights to the drawing files unless otherwise agreed. The flanges shown were produced to allow the use of 2" primary tubes on a Ford Windsor cylinder head. The head plate was cut ex 10mm plate to allow threading, the header flange from 8mm plate to minimise warpage.