Dirt Bike 4-Stroke Complete Systems

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Most Recent 4-Stroke Complete Systems Reviews

Big Gun Evo Utility Complete Exhaust Big Gun Evo Utility Complete Exhaust Mike - "Great power and sound for my 570 Polaris"
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Yoshimura RS-4 Full System Exhaust Yoshimura RS-4 Full System Exhaust CamUSMC - Would HIGHLY recommend to anyone! "I would highly recommend this exhaust to anyone wanting to get more solid power, better looking, and the sound! Is amazing! I recently compared the FMF 4.1 with my 2012 Rmz250 and the Yoshimura RS-4 and in my opinion for the many years I've raced I would recommend Yoshimura any day over an FMF. Pro circuit and Yoshimura I've both experienced with 2 stroke and 4 stroke bikes and both brands NEVER disappoint! As always love the support and great service of Motorsport.com wouldn't order from anyone else!"
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