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2012 r6 m4 gp series

648 views 0 replies 1 participant last post by  andrewj 
#1 · (Edited)
I tried installing the gp series twice with two different exhausts they sent me. I would have to press down very hard with force in order for the hole to match so that the mounting bolt would fit. The exhaust says YAMAHA 13SR and was wondering what year that would be. I just realized the brake master cylinder and the brake system was changed with NISIN. Any help is appreciated. Thanks
 

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