Don't use the aluminum extensions and mount the green and yellow seals to the pilots on the hose block not the compressor. They will fall out if on the compressor and end up in the black hole subframe. Just make sure they seat properly before you tighten down the bolt on the block. I bought the same hoses from them just be careful the powder coat is a bit fragile and scratches real easily. Put your pag 150 or mineral oil in before you mount it up (suction port).