Hey Hung0820,

I already pulled one of my spark plugs out of my V6. It is a NGK PFR5N-11 and the Bosch Platinum 4 part #4418 is a perfect match.

I just got off the phone with my dealerships service dept and now they said to just replace the spark plugs is $89.88 instead of $129.....hmmm.

They said that the 30,000 mile tune up cost $399.88 and the 60,000 mile timing belt change cost $850.

Changing the spark plugs yourself on the V6 will consist of removing vacuum hoses and bleeding fuel line, etc.. Then you have to remove the surge tank and then replace the surge tank and probably a new gasket for it. Then you need to use a torque wrench to make sure you tighten the bolts at proper pounds. What a hassle this is for sure.