I had a customer score an Extrude Honed Cobra upper and a stock stock Cobra lower which he had sent to me so I could clean up the upper (guy stripped and started to grind for polishing but left it 3/4 done) and port the lower. He got it on ebay for $167 + shipping.
The upper did not even have all the casting flash removed by the EH, so I highly question how much additional flow was realized. I have pictures.
The upper did not even have all the casting flash removed by the EH, so I highly question how much additional flow was realized. I have pictures.

