hi all,recently i had my my02 9-5 aero tuned and after reading this forum i am still unsure which is the correct plug for a tuned aero.before the tune i was usins the pfr,s and left them in with the tune and car runs great.after reading this topic i then tried the 7es 11,s as this thread seems to suggest and car again runs great,i am just looking for some clarity as to is there a specific plug for a tuned aero over a stock one.car seems to run the same whatever plugs i use.