About to change the plus in my 05 5.4 3v for the second time. What plugs do y'all recommend, yes I know how to do them and all that!!

 

Sp515

 

X2

 

x3

 

X4

 

I'm with all the above.

 

just did mine for the 3rd time (197k miles). I used SP-515 (aka PZH14F) again

 

Got em thanks everyone doing them this afternoon

 

Got them done, didn't break a single one off, piece of advice for the 2 fuel fill ups before doing your plugs run a fuel treatment in both tanks, it breaks up all the carbon. All my plugs came out with ease and these had 80k on them.

 

Of course they didn't break. You have already changed them..