2016 performance typle plugs.

[Kinfolkcoyote]

What's a good upgrade for the stock harley plugs. Accel or splitfire something like that.

 

[MisterB]

What's a good upgrade for the stock harley plugs. Accel or splitfire something like that.

Harley has their Screamin Eagle line of performance plugs. That's what I'd get

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[Happy Glider]

Why do you want to switch?


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[CoHam]

I've been using Splitfire plugs for over 20 years in my Harleys. They were all high performance motors (bored, cammed, milded & ported heads, high compression pistons, modified carbs, headers, etc.). The plugs worked very well. They ran clean, and never fouled. Did they really provide faster flame travel and better combustion? I don't know, but my bikes ran like raped apes. I haven't touched the motor in my new SG yet (except for air cleaner, header, muffler and FP3), but when I do I'll probably stuff Splitfires in again. Why not?