This one comes with a cover for the first o2 sensor bung and looks like the gasket is also thicker than what OBX sends out. The center junction weld is also different - the OBX is more of a round bulge, whereas this one's more straight. Unfortunately, there is no bung for the second o2 sensor, as you will find in the OBX.
doesnt this one have 2 o2 sensor bungs? what's that sticking out at the very top of the header? it's kinda hard to see... anyways, it looks quality to me....and my birthday IS coming up here soon....hmmm
