Just wanted to let you all know that i just fitted a set of screamin eagle plugs to my 09 dyna the other day they are the latest version so i am told, [street performance spark plugs for stock compression part number 32192-10].
After fitting them i fired the bike up and it seemed to start a little better once warmed up it appeared to have silghtly better throttle responce, so i went for a quick run around the block, you can definitly feel the differance in throttle responce when pulling out of turns. will pull the plugs in a few days and see how they are burning, all in all not bad mod for the money spent [$27.00 ] also no error codes thrown at me.
Grumps
The plugs are the lastest release from Harley Davidson got them from Morgan and Wackers up here in Brisbane.
That's good they are working, i just run Champion plugs, they work for me.
seen a guy once that was dynoing a V8 on an engine dyno, he had three different brand of plugs, one brand was super expencive and at that time HD used the same plug but with the screamin eagle brand name on it.
they dynoed the motor with the three different plugs and was not even one HP difference between them. i know sometimes you can think something feels better but if you put on the dyno or went down the quarter mile would not see a gain, UNLESS the plugs you had in were stuffed then might see something.
Krash.
The bike probably does not make any more HP but it definitly seems to be crisper or maybe it is just my imagination.
