Originally Posted by 32krazy!

i just went out and compared the "Q" bov with my other 50mm version 2 bov and the serial # are larger on the Q than the 50mm bov but yes placed differently. dont know if that helps or not but all 3 bov that i have all came in the same style boxes with foam cutouts for the flange , v band and nipple for the top of the bov with tial markings on them