Installed on a 2013 Triumph Rocket Roadster. Looks great, easy install and sounds great. I have a power commander 5 and triple K&N filters. Will need retuned.
Helix 22" Megaphone Muffler
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"Helix Mufflers are universal and have no specs on sound or performance. Due to the fact that they fit many motorcycles, each motorcycle will perform differently based on engine size and tuning. Helix cannot test every motorcycle with a universal muffler. These are sold as replacements for stock, not performance, or sound. These mufflers are designed to fit engines from 125cc to 1300cc that's a wide range."
-Benson, Helix Racing Products