FYI since I didn't find any specific posts about this. I have a 2007 Fatboy with 2008 BUB Straightaways Mid-length (similar to Rinehart 2 into 2). The pipes are in great shape but the original end caps were getting ratty and needed to be replaced. BUB Enterprises went out of business years ago and I wasn't sure if the Rinehart 2.5" standard chrome end caps would fit (lots of variables... bolt holes, depth, circumference tolerances). But since BUB and Rinehart had a partnership once I took a chance. Luckily, the new Rinehart end caps fit older BUB Straightaways perfectly (I'm sure they would work for BUB Straightaway Longs as well). The old end caps were bolted at 6 o'clock and 9 o'clock. Unbolting the lower pipe at the rear frame was needed to get at the upper cap hex bolt at 6 o'clock. The old end caps came off easily with WD-40 and a strap wrench. The Rinehart caps were lubed and gently tapped on with a rubber mallet and bolted at 9 o'clock (the new end caps have bolt holes at 3 o'clock and 9 o'clock so the logo can be turned up or down). Photo attached.