What is your opinion of E3 spark plugs for Harleys. You show them on your webite yet you do not list them for Harleys. I've been told by the E3 factory that an E3.36 will fit an 05 FLHRSI (Road King Custom). Can you verify this please?

 

I put them in mine , I believe the part # e336

 

So can you tell any differance?

 

Worst plugs ever.stick to stock Harley or NGK. Had a Honda civic that worked on with a misfire. It had brand new E3 plugs in it. Put stock plugs back in it and it ran fine.

 

I've run them in mine for 15000 miles now. Fuel mileage went up almost 2 miles more per gallon and throttle response seems better. Getting ready to install the second set before i leave for Colorado in July.

 

Yup that'll happen when you put Harley plugs in a Honda.....

 

That's what I was thinking lol
You're such a smartass

I've just gone with Autolites. Was told not to waste the money on those. So I take it you recommend them? Havee you heard of anyone using them with the 96"?

 

I have a set on my 09 FatBob. I'm no tech guru but i did notice a distinct difference between my e3 vs stock. The response is smoother, acceleration is crisp and when i pulled them out to check them, they were looking brand new.

 

Well there it is folks! May be worth a try.

 

You're such a smartass


Well...........Yes I am,Thank you Terry. LOL
I am getting ready to switch my RKC and the wife's 1200C over to E3's.

Terry