Not sure who made the DP. It's 3" stainless with an O2 bung. It has a few dents, but fit is pretty good. The flange has been ported / enlarged, I assume for a larger turbo. The matching surface is pretty thin on one side because of this. I ran a copper gasket to insure seal. (Included) The face could be milled / ground done to enlarge that surface. $200 shipped CONUS
K&N cone air filter with IAT sensor, 3" inlet, 9" long - $25 shipped View attachment 195897
K&N cone air filter with IAT sensor, 3" inlet, 9" long - $25 shipped View attachment 195897