i have read a few threads about this dilemma of what is best and been left abit confused on what to choose, i am changing the spark plugs after 4 yrs...lol
although the car runs good i assume its running a iridium type long life plug, day to day normal driving, i do notice when driven hard i get the hesitation which has been covered on other threads before.
Car is a r34 gtt has cat back exhaust, boost set at 11psi and pod +cai....
alot of diferent plugs being suggested part numbers bcpr6es,bkr6e1x,pfr6a-11,bkr6eya etc..
i am thinking to try a heat range 6 plug and .8 gap due to the extra boost, does anyone know the ngk part number? i want it pre gapped dont want to be mucking around regapping them....anyone can clarify what they run in there r34 with similar small mods?