BROCKS PERFORMANCE 390859 Alien Head Full Exhaust System BLACK for 2007-2008 GSXR1000 w/ 14" Black Ceramic Muffler, 390859. 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.The Alien Head offers a full through 2” outlet w/ permanent baffle for increased exhaust flow, while adding a distinctive look and deep exhaust tone. This system is a must for the sportbike owner who’s never quite satisfied with factory power. 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 for the stock to highly modified sportbike. The Alien Head exhaust system stands as the benchmark of cutting edge power, design, and style.
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