one piece spark plugs??

[89hatchlx]

I recently changed out my HT0 plugs with a new set do to a slight miss every once and awhile. That was about 10,000 miles ago and now the miss is back again. I remember reading someone using a champion one peice plug. Do they make a one peice plug a step colder than stock yet? If so, where can I purchase from? Im sure with only 10,000 miles on mine they will come rite out but i'd rather replace them w/ a one peice to be safe.

 

[GT08FastPony]

Champion 7989 works great in my 08 GT no problems. I don't know if they make a one piece Champion a step colder?

 

[NastyStang113]

What mods are you running? What did you gap them at?

 

[GOLDENPONY]

I don't think Champion has anything colder than stock heat range.

 

[AutoXRacer]

One piece, one step colder plugs are available from Brisk and Accel...