Hi Guys,

It seams that most people on here favour the NGK PFR platinum plug over the NGK iridium plug, just wondered what the reason for that was?

I am currently running about 300bhp in my 98 sti typr r so was going to go for the PFR7B as it seams a popular choice.

Would a 0.7mm plug gap be advised?

Thank you for your help
Jimmy

 

That will be fine fella

 

Thanx Mate, i am going to pop down the local motor factors and pick some up.

Cheers
Jimmy

 

what about ngk iridium on a sti import running the same, 300bhp

 

Heat range 7 would still be the plug for you but just in iridium...its called;
BKR7EIX

Jimmy

 

i have the number 11 on my box is that heat range if so is that fine

 

The number 11 if its right on the end of the part number on a NGK spark plug is normally how much the plug is gapped at out the factory.