Extra thick flanges are surface ground to ensure flat sealing surface.
The welds inside the flanges are also finish ground.
Muffler Collector is centered in the header.
This header will require either heater boxes or J-tubes be used.
The small 3 bolt flange is at the common 1:00 position and totally re-desgned for a perfect, LEVEL fit.
Fits 13-1600 type 1 (Beetle) style engines and bodies.