[bike mad]

yes. I have a 54mm full system and have to say you get more power but it's the way it wakes up the bike, sounds wierd but you will notice the difference, is it worth it well put it this way I have not heared any one say NO yet, ps I went for the steel one as I've heard the titanium one splits, and it's cheaper, and still a lot lighter that the original, it's a work of art