I have a brand new, never used 50mm Tial blow off valve (blue) that has a Evolution Racewerks stamp on it. Purchased with Evolution Racewerks charge pipe so it came pre-installed on charge pipe. Price is $180 shipped. I am selling because I found a TurboSmart bov on sale I couldn't pass up. I will be using the TurboSmart box to ship the Tial bov l, since it came pre-installed with no box.