Everyday Low Price: $10.99
Gold Club Price: What's This? $9.89
J&P Part: 383-528
GOOD PARTS TO HAVE
Smooth Idle!! I love these plugs. Worth the Money!
we will see
simply the best
Great product. Good performance and fuel mileage gains
good plugs small increase in torque
They work... I don't know, spark plugs were never that big of a deal I thought. But in theory they're great!
Keith Hertzog Posted:
Seems to have increased gas mileage on my Harley. So far so good.
This is another great item it was everything they said it would be.
These really made my bike run terrible.
michael mcclure Posted:
its early to tell but seens to run better sounds good and no gap sitting great
Good replacement plug worth the extra $$.
No difference from stock Harley Davidson spark plugs.
Worked great no probs at all...and no gapping :)
Great plugs for increased performance.
noticible difference in power and acceleration.
I replaced my screaming eagle plugs with these and I can feel a torque difference and a more complete burn from an exhaust smell change.
Works very well. There was a noticable improvement in how the bike runs.
My bike runs very well now. I like these plugs.
inproved gas milage
tell you in the spring - its january right now
Great plug for my 107 cu in
work great but overpriced
Did not notice any difference in performance or efficiency.
The bike does seem to have a bit more power and starts much easier.
Good stuff, no miracles but long warranted 5 years or 100000 miles
Bike runs really well. Will have to see how they hold up.
This is THE BEST plug avalable! You can actually hear the better burn. I use in all my vehicles. Also, You'll notce improved gas millage & prefomance.
Feel the difference. I really like these bad boys.
Great performance from these plugs, very happy with my purchase.
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