TECHNICAL BACKGROUND.....your the moron asking spark plug questions let me tell you some thing jr... bring that well tuned banshee by the master tech you are out to my dragstrip and watch me spank that bad boys ass all over the 300ft mark BRING IT JR.....and then call mama for a new boost bottle cause you trew it at me when i smoked you.....LOLOLOLOL LMFAO YOU MASTER BANSHEE TECH YOU,,,,DONT BUST ME UP.....LOL