I was shopping on the Barkley's website last month for a few items & discovered they are selling the cast elbow for the hundred-series vertical exhaust! Maybe they've been available for awhile, but it was a new discovery for me. I had the double-bend vertical pipe on mine which worked okay, but was very tight to the hood & headlight. Plus, it required I make a bracket. It held up fine for tha last 10 years or so, but the cast one is a direct bolt-on to the tank bracket & it's noticeably quieter.