84-03/17-up style. Polished stainless steel. Great resistance against weather influences. Note: Exhaust retaining rings are required for installation. These must be ordered separately. Note: 84-03/17-up 'Early Style' steel and 04-17 'Late Style' plain aluminum exhaust flanges are interchangeable. Late Style flanges are thicker and designed to help prevent bending of the exhaust flange. All will fit all 84-up Big Twin and 86-up XL Sportster models. M8 models are equipped with the 'early style' steel flanges again. OEM replacement reference 65328-83, 65328-83A steel flange.