3mm seal street ported motor.

Want to change my plugs. Feeling them start to do weird things.

What's a good suggestion on what to get?

 

god dammit, I'm so sorry.

I didnt' realize that there was another thread already started about this a fwe minutes ago.

 

Well, I've lost the other thread.

So, what's the general consesus about running ngk 9's on all four?

my engine. 3mm seal, street port, 12psi, intake, dp, mp, cb, pfc

advantages, disadvantages.

Too late since i bought 4 trailing (nGK 9's) from dealer already. Need input before I install.

 

ngk 9s are good...no disadvantages as far as i know.

 

I run all 9s in mine. Full 3" exhaust, 12lbs, PFS IC, remapped ecu. Runs great. Advantage is that you might be less likely to detonate. Hotter plugs keep more heat in the engine....bad. Idle & startup can be a little bit more crunchy when the car is cold, but it's not a big deal. It takes like 20 seconds to heat those things up. Don't run 7s in leading with those mods.
~Tom