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Two Brothers Racing Exhaust

1325 Views 0 Replies 1 Participant Last post by  jthomas1310
Has anyone else fitted the S1R Full System to their R3? Have found it to be a great exhaust, however it was a risky buy as I could not find much in the way of reviews or other people who have had it one their bike. If any one has one on theirs, what your thoughts? Did you notice any difference in performance?
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