Been running the NGK Iridiums now for the past two years with Taylor 8MM wires and I also noticed a very good response from engine immediately after install of these products. Gas mileage was up about 6mpg and they are still in after about 12000 miles with no misfires. Awesome plugs but very pricey @ 11.00 bones a pop. But I know I saved on gas since then so it all seems well and good to me. Taylor wires are the poop with these plugs. I'll recommend this setup to any one running a Full 3L or Hybrid.

CSVT E0 3L 14.5 @ 94mph, Stock Intake, Stock Exhaust minus Resonator, CEL, And Broken Pass. Side CV...Untuned.