397060 Brocks Performance Alien Head Stainless Full Exhaust System for 1999-2019 GSXR1300 Hayabusa w/ 14" Muffler, 397060. The Alien Head Exhaust System combines our legendary race-proven performance with the distinctive look and sound of our Alien Head muffler and has become a favorite with custom builders to showcase more of today’s big tire/custom swingarms. Manufactured to stringent specifications, Brock personally designed and hand-tuned the Alien Head Full Exhaust System to find the ideal balance of performance and attitude. The Alien Head Exhaust System stands as the benchmark of cutting edge power, design, and style.
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