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I'm using NGK B7ES in my 75 Turbo, but I've been advised to use something colder, like 8 or 9, just to be safe of not melting a plug.
Std engine with Squadra Chip!
Any thoughts?

Hi Oversteer!

For some power around 190bhp, NGK B7ES will be just fine...

Sasha

I agree. Used them too and had no problems at all even with high boost.