Like the title said. I used to own a 99L, just checking to see if they changed plugs in 03. I remember running NGK TR6's on a 4lb pulley back then, now I'm looking to go to a 6lb pulley on the 03, will the TR6's be a good choice or should I go with something else.

-Sly

 

Rob02 and JLP swear by the Denso IT-22's.

I've been running around on the factory plugs. I will either go to the Denso or try the Brisks.

 

With a 6# lower i ran BR7. I didn't like them on the street, 2 cold. Went to the Brisks and i like them. Thank you Mark.

TEAM PSP
___________
Don

 

BR-7's are known for SOMETIMES giving you trouble on the street.

But I can say from experience, I've been running THE SAME
Denso IT-22's through the last 3 summers, and have NO ISSUES.
They run PERFECT from idle to 6000 RPM. And I also use them with only 4lbs of Pulley through the Cold months ALSO TROUBLE FREE

Yes more than 4lbs and you should go 2 ranges cooler