Originally Posted by Sal@Evolve
They are a colder running plug. It's a good idea but one with a huge cost behind it for the end user.
You could replace the standard plugs 3 times faster and still not spend that much.
Ok, i see. Thanks for the response though, I'm not much into these thing and I was sure that I'd get some answers here
The G-power with the spark plugs is much more expensive than all other kits out there .. So I'm not really sure yet what to come up with, I can't drive a stock M3, its simply too slow for me lol