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Originally posted by Anito Guys, I put the full 57mm termi system on late last year. Without a doubts it was worth every penny and transformed the bike. More power, smoother, much better engine braking and of course the sound. It may have cost cloe to £3k but money well spent as far as i'm concerened. I have an 04 749R |
i got a 57mm system on mine,its very good but i dont think its worth or made £3000 worth of improvements,its better than the slip on system but £3000-no