i read Kojima's type up on camshafts but when I checked at JWT, they only offer the camshafts for the SR20DE. Could the JWT sight me old and outdated, or did Kojima just get special treatment and get the camshafts before they were to be distributed to vendors. This would be an amazing upgrade because he said that the Jim Wolf camshafts added 42 horses in the usable range! Wow, that ialmost half of the hp a stock Sentra runs. He also mentioned that putting B14 camshafts into the B13 engine would add power. Does anyone know how much?