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               Originally Posted by 
              englishbandit  
              thanks mate I know about the mods i put them on my last 2011 xt660 i did everything to that. i have an 2007 but must be a late reg as no air sensor what i need to know is can i do all the mods without changing the oem cans 
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         Yes you can but don�t expect a lot of performance results, the original cans are heavily restricted