Planing on changing plugs this week just hit 110k on my 06 , and not sure what's my best option. Still using original coil pack,and don't intend on changing it for any other. car has a 15% pulley and K&N cai , if that helps on plug choice, Sent from my iPhone using Tapatalk
I ran oem plugs on my MCS with 15% pulley. Changed them out at 50,000 miles. Change out your spark plug wires too when you do the plugs.