Only the most advanced Bikes get these Spark Plugs - - NICE !!! - Harley Davidson Street Forum - Street 500 and 750
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post #1 of 8 Old 10-31-2016, 11:16 PM Thread Starter
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Only the most advanced Bikes get these Spark Plugs - - NICE !!!

Was browsing through the HD website for parts for new XG750 that I have and ran across some newly-listed Screamin' Eagle Spark Plugs.

ONLY for the new Milwaukee-Eight engines and the (in my opinion) similarly advanced XG models. Nice Justification that our engines are the current State-of-the-Art for HD.

Screamin? Eagle Performance Spark Plugs | Ignition Components | Official Harley-Davidson Online Store

I'm not planning on going out to buy $20 Spark Plugs, that are going to be hidden down inside. Not sure the performance of the park plugs will lead me to replace them. Although I DO NOW have the Screamin' Eagle 10 mm Phat Spark Plug Wires. And replaced coil with higher performance Accel coil. (See my garage if you want details.)

Fits '15-later XG models and '17-later Milwaukee-Eight™ engine equipped models.
2017
Harley Davidson Street 500 XG500
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post #2 of 8 Old 11-01-2016, 06:01 AM
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Thanks, I'm going to be getting those was planning on upgrading the plugs + wires soon so looks good to me

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post #3 of 8 Old 11-02-2016, 04:09 AM
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Did the coil replacement make a difference at all?I replaced the leads and can't see any benefit other than looks?
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post #4 of 8 Old 11-02-2016, 04:51 AM
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I used the NGK Iridium in mine. Don't have it front of me at the moment. Can't remember the number


And the Sumax 8mm wires. Along with the Accel Coil.

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post #5 of 8 Old 11-02-2016, 08:55 AM
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I would think that the NGK Iridium plugs would be A LOT cheaper then the HD Screaming Eagle, and just as good. Really ............. do you think you'd feel a difference?

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post #6 of 8 Old 11-02-2016, 07:03 PM Thread Starter
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Quote:
Originally Posted by aussie biker View Post
Did the coil replacement make a difference at all?I replaced the leads and can't see any benefit other than looks?
I think the coil replacement made as much difference as the plug wires, but certainly cost more than the plug wires.

Quote:
Originally Posted by 10-64 View Post
I would think that the NGK Iridium plugs would be A LOT cheaper then the HD Screaming Eagle, and just as good. Really ............. do you think you'd feel a difference?
The prices I have found for NGK Iridium are about $20 a pair, essentially the same as the Screamin' Eagle. do I think I'd feel a difference-- NOPE. By the time I was paying $10 per spark plug, I would expect good high quality and performance.

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post #7 of 8 Old 11-02-2016, 08:05 PM
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They were NGK CR9EIX. I don't remember paying $10 for each. Advance Auto(By me) sells them $9 each. Amazon sells them $6.56 each. (Add on item).

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post #8 of 8 Old 11-02-2016, 10:44 PM Thread Starter
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Nice Price.Good to know the part number. Sounds like a great way to go.
Was at dealer, ordering a key, and new spark plugs are on back order with expected delivery in December.

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