Anybody who did a Stage 1 swap plugs? I mean, are the stock plugs as good after a Stage1 or should there be a hotter or cooler plug to take advantage of the upgrade.? Just curious.

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Stock plug will be more than exceptable for a stage 1 upgrade. Unless you start making major changes to the motor I would doubt you would need to change the plug heat range. Just my $.02.

Neil
RDMC

 

I have never had any luck using anything but the factory recomened plugs.

 

All correct! Plugs shouldn't need upgraded unless engine combinations are changed such as,compression increased(pistons),cams,heads, injectors,throttle body etc...

milo8155
07 FLHX
03 FXST
Collierville, TN

 

+1