Looking to sell my Hahn S20g, is in great condition. Never saw more than 15psi (and that was only a couple of times during tuning) Only reason I'm selling is that I bought and installed a Hahn S25g so I have no need for this thing. I do have it set up for watercooling and can ship the lines with it that I used if you want them. It has been ceramic coated but it was done by a friend and the exhaust side didn't stay(if flaked off) and the compressor side is still holding on strong. I will have some pictures of it up soon, I had it clocked on my set up but you may need to change it (I had custom lower intercooler piping on my car). I'm looking to get 600 plus shipping for it. This retails for over 1000 new and has the added option of the 90 degree elbow welded on the compressor. I bought this brand new from Hahn and probably has less than 10-15k on it. Pics to come soon.