Red or Black Extenders for a QV?

Thanks for the link

What are your thoughts on moving the plug heat range from a 6 to an 8 like I am seeing some suppliers recommending on their parts listings?

 

We are referring to the color of the extenders that are under those plug wires, not the plug wires themselves. Two separate parts.

 

That's why I was asking. Apparently at some point, the color did indicate resistance but not today. When I did my homework here first using search, I just got more confused. I was really trying to find what I am supposed to use, not just a bunch of postings of what other people have in there car now, 40 years later. The more I dug, the worse it got. Steve was helpful, though. (Thank you)

There is no consistency with any of this anymore. If we are supposed to take resistance and plug temps seriously as Ferrari prescribes, we have a problem now. Pull up 5 different reputable suppliers and you will see 5 different mix and match now across the model range and plug temp listings ranging from 5 to 8.

I'm going with the manual and as long as I have R plugs, I am hoping it doesn't matter what extenders I get.

 

Street use. I don't even push it on the track any longer with the miles I have on it. We had an event last weekend and I never exceeded 5500 max (anyone can drive fast straight). I mostly left the car in 4th and never slowed down.

It has 6 in it now but I do not remember why since they have been in there about 10 years. I am not even sure it was me that put them in. I bought 7 this time.