Return KS4764 Fits 3W 70B2, 80B2 Old Style or Fits 3W 38i, 42i, 50i, 80B2, 100B2 Old Drop: 1.625"Run: 12.0"OD: 25mm Price : $49.00 Quantity : **Add To Cart Krumscheid Stainless Steel - Straight Header Model: KS4764 Fits 3W 70B2, 80B2 Old Style or 3W 38i, 42i, 50i, 85B2, 100B2, 106B2   Drop is measured from the face of the flange at the mounting bolt centerline to the centerline of the output tube Run is measured from the center of the exhaust port to the end of the output tube Run can vary across batches as much as +/- 0.5" Drop can vary across batches as much as +/- 0.125" KS4764 Specifications D Drop 1.625" R Run 12.00" OD Output Diameter 25mm   Angled Flange NO   Weight 4.10 Oz     Specifications Subject To Change Without Notice