Thanks. Already bought the Denso plugs, just gotta put them in. Got cap, rotor and wires as well. Will clean the AFM too. good article reference. I have seen lots of discussion on the O2 sensor as well. Your opinion - factory or aftermarket and why? Gonna replace the exhaust pipe today. Keeping the existing one as all it needs is a reweld of the boss for the sensor.. Metal is good. Just can't get at it easily while on the car. One more thing - what header product and where to go for one. Will it bolt up to the standard exhaust parts?

Thanks again, Bill