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Old Jul 16, 2018 | 02:59 PM
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2018 Road King Milwaukee 8

Is a tuner necessary if just doing slip ons & high flow air cleaner?
 
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Old Jul 16, 2018 | 03:07 PM
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Most .likely yes. Why the high flow AC? slip ons probably not.
 
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Old Jul 16, 2018 | 03:10 PM
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I already have the slip ons(Neighbor Haters) and just like the way the hi flow AC looks. Not really shooting for performance.
 
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Old Jul 16, 2018 | 05:34 PM
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High flow AC and a tuner will also make it run A LOT cooler, thus making more power, etc....
 
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Old Jul 16, 2018 | 05:41 PM
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Originally Posted by matt_eglide
High flow AC and a tuner will also make it run A LOT cooler, thus making more power, etc....
And quite possibly void the power train warranty...
 
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Old Jul 16, 2018 | 06:21 PM
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Not true, warranty stays valid as long as you use HD Screaming Eagle products. They do make slip-ons, AC and a tuner. You also have a specific period of time (60 days I think) from your date of purchase, to purchase, install and include your Screaming Eagle products onto your warranty and have them included as if they were on your bike at the time you purchased it. Dealer should be able to explain this fully.

But some will argue and deny warranty claims for non-HD aftermarket parts on a new(er) bike with a remaining warranty. Best to ask the questions before buying expensive parts you "technically" don't need.

HTH
 
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Old Jul 16, 2018 | 08:00 PM
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Originally Posted by matt_eglide
Not true, warranty stays valid as long as you use HD Screaming Eagle products. They do make slip-ons, AC and a tuner. You also have a specific period of time (60 days I think) from your date of purchase, to purchase, install and include your Screaming Eagle products onto your warranty and have them included as if they were on your bike at the time you purchased it. Dealer should be able to explain this fully.

But some will argue and deny warranty claims for non-HD aftermarket parts on a new(er) bike with a remaining warranty. Best to ask the questions before buying expensive parts you "technically" don't need.

HTH
He already has non HD slip ins. Doesn't say what air cleaner nor what tuner so it could easily be true. As I understand it the non HD/SE tuner would be the killer.
 
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Old Jul 17, 2018 | 01:31 AM
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Originally Posted by Gary1
2018 Road King Milwaukee 8

Is a tuner necessary if just doing slip ons & high flow air cleaner?
yes.

Have you ridden the bike for at least 1000 miles. always wonder what motivates pulling stock parts.
 
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Old Jul 17, 2018 | 04:50 AM
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If you look at the part for either the air cleaner or the exhaust on the website, they both specifically say that ECM calibration is required. So the download would be required at a minimum. Tuner would do a better job but as others have said, it could void your engine warranty using after market, non EPA compliant parts other than their tuner.
 
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Old Jul 18, 2018 | 10:40 PM
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Originally Posted by 1Canuck

Have you ridden the bike for at least 1000 miles. always wonder what motivates pulling stock parts.

Um, I would think it would be obvious... and I didn't know there was a 1000 miles minimum on OEM parts.

For my part, I'm motivated for better performance.... I have been "pulling stock parts" on 2 shovel heads, 1 EVO, and 4 Twin Cams.... I don't own an M8... or I'm sure I'd be able to add an M8 to that list...

And before you ask why I don't ride it a bunch first to see if it's powerful enough..... I don't care what engine, what HP rating, what Torque level it has in OEM trim.... I've owned enough Harleys to know that any HD engine sold in OEM/EPA approved condition, is choked-up and underperforming. It's just a few small changes away from breathing and performing a lot better.... Of course I don't always (almost never) stop at those few small changes, but that's where the sickness comes in....
 
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