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E3 spark plugs were shown to improve horsepower ratings (up to 12% in smaller displacement engines) when compared to conventional plugs of several leading manufacturer's.
Kinda hard to believe..............................Hard to do that with pipes and filter and tuner.
 

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Jeremyf073 said:
Are we supposed to change our plugs at 8K? ???

One of these days I really should read the manual to this machine ::)
yes sir that's what the service manual calls for.

ha ha Immortal I'm not gonna take it that far. I just do the good ol' seat of the pants test.
 

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Jeremyf073 said:
Are we supposed to change our plugs at 8K? ???

One of these days I really should read the manual to this machine ::)
Ya I should too but I'm to busy reading everything on this forum, much more info here than in that book.'lol.
 

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E3 plugs have been proven to add horsepower and economy. But your talking in the gains of 1 to 5% which on a big V8 that would be a number worth the money on our bike. Well it doesnt make it look better. We already get 38 to 40 mpg and its only going to add maybe 1 to 2 hp. So not worth the money to me. not sure what the price difference is between those and some good NGK's. But that is just my opinion.
 

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E3 plugs have been proven to add horsepower and economy. But your talking in the gains of 1 to 5% which on a big V8 that would be a number worth the money on our bike. Well it doesnt make it look better. We already get 38 to 40 mpg and its only going to add maybe 1 to 2 hp. So not worth the money to me. not sure what the price difference is between those and some good NGK's. But that is just my opinion.
Looked on Amazon and they are about the same price as the NGK plugs so what they heck try them.
Let us know how it works out. I already have the NGK plugs for mine so I'll just use those this round.
 

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Skerlee. I knew in the past you didn't use a tuner on your set up, like mine I don't need it either. But I know recently you bought a tuner here on the forum. Just wanted to know. Did it make a difference?
 

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Skerlee. I knew in the past you didn't use a tuner on your set up, like mine I don't need it either. But I know recently you bought a tuner here on the forum. Just wanted to know. Did it make a difference?
I inquired about one for sell here but I never purchased a tuner.
 

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I contacted e3 a while back and they told me they did not have a plug for the stryker yet. I have used these in a 94 newyorker I had could not tell a difference in power but I could in the fuel mileage. I would use them agin.
 
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