Fz1abolical
New Member
Does anyone actually know when an exaust co. says there slip on is plug and play,do they mean with or without silencer? When say,scorpion shows a dyno graph on unmapped bike,was it run with or without silencer?Does anyone wonder about this?I installed a scorpion on my 09,came with the silencer in. runs great,feels a little quicker then stock,went from 35 mpg to 38mpg.Today I pulled out silencer.The bike is louder,no real change in power I can tell at least,and after about 100 mile round trip to the beach got over 39 mpg.Im just wondering how much leaner over stock it is now ,if at all.