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hi guys! i got a Danmoto XG1 and installed last week. initial notes- sounds MUCH better than stock, not raspy or tin-can like it's much deeper than you'd expect than hearing it on youtube. it's not like gsxr no muffler loud, i actually do not mind this because i always thought 390duke was really quiet from factory. besides the noise, i don't notice any perf. gain. WOT i feel like i'm on a dirtbike lol i don't ride everyday but over time, should i be worried about my valves and spark plugs? did anyone run into trouble with no exhaust or muffler like xg-1?

thanks!
 
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