As stated i have a set of super 4's spark plugs which retail for nearly $100 for a set of 6. They have been in my car for 5min and there is nothing at all wrong with them except im running a complete ic&e ignition setup and the setup requires a non resitor type plug, and the super 4's are. Im chasing $50 for them thats nearly half what i paid! i brought them cause i was told they are amongst some of the best plugs (similiar to indexing your plugs) but as stated wont work with my ic&e setup.