just did mine today.well attempted.everything went smoothly when i changed the first NGK plus to Bosch platinum 4+'s.didnt look like the car ever had em changed and it has 89k on it.but anywayz everything went smoothly until i went to change the 4th one.THAT DAM IGNITION COIL REFUSED TO COME OUT.i had plans made when i was doing the change so i ended up only changing the first 3 plugs that are closest to the bumper(i have an 02 3.0i).any idea why some coils are a PITA to come out while others cooperate?