Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
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Old May 6, 2021 | 07:07 PM
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Default M8 exhaust

Hey all- noob here. Have a 2020 SG. Putting exhaust on- going with stainless headers from Fuel Moto along with their outlaw slip ons. Anyone run this set up and/or have any experience with FM exhaust parts?
Have a Power vision to tune.
 
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Old May 6, 2021 | 10:29 PM
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FM parts all seem to be high quality and good value. They have threads sprinkled around the forum so if you search for their name you may find specifically what you're looking for,
 
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Old May 7, 2021 | 04:40 AM
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2019 Street Glide Special with that set up, no problems and nice exhaust sound, not too loud or too quite.
 
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Old May 7, 2021 | 07:03 AM
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just be aware of the warranty implications if that is something that is important to you.
 
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Old May 7, 2021 | 07:20 AM
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Originally Posted by skratch;[url=tel:19912637
19912637]just be aware of the warranty implications if that is something that is important to you.
Yeah, not really something I’m too worried about. If something happens, it happens. Just wish they weren’t so lean for emissions to begin with!!
 
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Old May 7, 2021 | 07:25 AM
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Originally Posted by Hawg Runner;[url=tel:19912428
19912428[/url]]2019 Street Glide Special with that set up, no problems and nice exhaust sound, not too loud or too quite.
Do you happen to have any clips of it running? If not please do not take one on my my account. Just wondering!! Thnx hawg
 
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Old May 7, 2021 | 08:06 AM
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Originally Posted by Guyonaglide
Yeah, not really something I’m too worried about. If something happens, it happens. Just wish they weren’t so lean for emissions to begin with!!
like every type of vehicle engine other the last 20 + years..only reason people complain about these is because they're sitting on top the motor unlike cars, outboards, etc etc...but reality is the M8 AFR is richer in open loop than Twin Cams from what I've gathered reading here
 
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Old May 7, 2021 | 09:43 AM
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Originally Posted by mjwebb
like every type of vehicle engine other the last 20 + years..only reason people complain about these is because they're sitting on top the motor unlike cars, outboards, etc etc...but reality is the M8 AFR is richer in open loop than Twin Cams from what I've gathered reading here

Agreed, this seems to be a myth that spread like wild fire. DK customs did some testing and actually shows the M8 is not nearly as lean as people like to believe.
 
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Old May 7, 2021 | 10:14 AM
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Originally Posted by Quik;[url=tel:19912988
19912988[/url]]Agreed, this seems to be a myth that spread like wild fire. DK customs did some testing and actually shows the M8 is not nearly as lean as people like to believe.
Once I adjust the AFR with more air and freer flowing exhaust, it will be lean, therefore needing a tune…
 
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Old May 7, 2021 | 10:24 AM
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Originally Posted by Guyonaglide
Once I adjust the AFR with more air and freer flowing exhaust, it will be lean, therefore needing a tune…
of course it benefits from a retune..same as for anybody and everybody that makes changes that alter the set oem parameters..simply put it's prudent and wise
 
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