Vibrant Exhaust Hanger Rod Clips for 1/2in OD hanger rod - (SOLD IN PAIRS)Vibrant Performance Hanger Rod Clips, made from Delrin(R), fill the gap when a Hanger Rod and a Rubber Hanger does not fit snugly. Installation of these Hanger Rod Clips minimize the ability for a Rubber Hanger to slide freely back and forth along a hanger rod, thereby reducing unwanted exhaust system movement. Exhaust Hanger Rod Clips; 0. 5 in. Hanger Rod OD; 2 pcs.; Delrin;