NISSAN RB20 RB25 RB30 TURBO OIL DRAIN LINE KITTurbo oil drain kit specifically for Nissan RB engines. The kit includes: 1 x 500mm 10AN Stainless Steel Braided Hose 1 x 10AN Straight Hose End 1 x 10AN 45 degree Hose End 1 x 10AN male turbo drain adaptor (available with 38mm or 50. 8mm hole centres.) 1 x 10AN to 3 4NPT adaptor Fasteners to suit Please note that there are two sizes for the turbo drain flange adaptor as below: 50. 80mm from the center of one hole to the center of the other. 38mm from