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I {Heart} Hookers.
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If you dont change air filter you dont have to.Think of your engine as a air pump.more air in needs more air out. Changing muffs might cause a reversion effect.
 

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I put Vance and Hines on the wifes 14 Slim today, expected decel popping..........Only took it on 25 mile trip afterward but there is very little popping. I plan on changing out the A/C and will get it tuned but if I did nothing else I probably could get away with it as is.
 

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I put my exhaust on my 12 Streetbob. didnt tune, didnt upgrade air cleaner either. Bike runs fine. A little decel pop but nothing crazy. I plan on doing a tune and stage one cleaner in the near future. Could not afford it all at once. But from what ive gathered, Try it and see how it rides. If it runs bad then tune it if it runs good then youll probably be ok for a while. Although I dont know the long term effects. thats why im going to tune and finish stage one as soon as my bank account lets me.. good luck
 
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