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I have a spare set of speedy pipes with 1 baffle missing, if you want to do a trade with some cash on my part.



No thanks. I want america pipes if i do this.

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I've removed the first baffle, drilled three 1/2" holes in the second. Nice sound, but after dinking with carbs for several months now, the sound has improved to a nice throaty rumble that I really like. My '03 America setup: no snorkels, UNI, drilled airbox/baffle partially out, TBS +1, 132/45. (fyi...side gap experiment coming up!). I've never heard thunderbike, so can't comment. My scoot gets me to the speed limit quickly and quite nicely with no complaints from me or cages around me! One of these days I going to get a real dyno to compare to butt dyno.



Wow ! So i guess i CAN leave my airbox mods and jetting in ! I woulda never guessed. It doesn't seem to make sense because america stock pipes with one baffle removed and the next having holes drilled shouldn't be un-resticted enough for that setup i'd have thought. But if you're doing it i guess i'm wrong. Anyone else done this and modded the box and jetted similar? By the way, i know it's not easy to put it accuratly in words, but how much louder would you say they are over stock? I want the rumble but not too much volume.