Check orientation of PRB pattern thermal insulating gasket. Correct orientation shown in first picture.

Place adapter and PRB gasket on manifold. Fasten adapter to manifold using x4 M8x1.25 20mm bolts.

Tighten to 16 lbf-ft using 6mm Allen/Hex drive.

Ensure that head of bolts are slightly recessed into adapter after tightening.

Do NOT use the split lock washers on this step.