So I can't help myself. I said I was gonna leave this thing stock but I'm just not wired that way :-) I bought the bike to primarily ride 2 up. And it will be used as such 95% of the time. I will likely do PODs and jet accordingly. I know I will likely pick up some intake noise from the PODs. If I am going to try to pull more air and fuel in I obviously need to try to move more exhaust out. BUT I don't want a set of loud pipes. That would likely keep the SO from riding and would defeat the purpose of having this bike in the first place. 那么,有没有什么东西会比股票的流动性更好,而不会比股票的声响太大呢?