Are they worth the extra $?

extra power or fuel econ?

motor has a lot of miles, looking for a little extra umphh

 

no. there like 50 a plug, i used to be able to get em half off and id still just buy ngk's. we used to have a display with a pulsestar and a normal crappy plug. the pulsestar did have a bigger spark but it got super corroded in about a month and messed up looking while the crap plug stayed looking fine and eventually people started sayin the other plug was the good one

 

thanks good to know. i thought they were just $25 each..

 

Wow even at 25 a peace thats 150bucks JUST for plugs fuck that man!

 

I'm having good luck with E3 plugs.

 

holy **** man!! there is no way in hell i would pay that for plugs!