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fmf powercore 4

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hi guys

i recently got me a 07 drz 400sm and i have a few questions for you..

its got a jd jet kit in it also it has the 3x3

here is my question..

i went out today and got a fmf powercore 4 slip on..

being that i got this bike from 20 min away from my house is installing this pipe going to effect my jetting?.. im not to good with carb stuff..

also i was curious about horse power gains and i would like to see some dyno results..so i can see where im sitting..

any help would be greatly appreciated.....thanks

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ok so its not a slip on its a complete rear from the mid pipe back..

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