Having the spark plugs changed out Monday, are Bosch Iridium's good or bad for a 2008 Hemi? I have read good and bad and I am a newbie when it comes down to the spark plug. ( I have read alot. )

Just wanted to see if anyone here has personal experience with these Bosch Iridium's.

Thank you for reading and have a great day.

OH, I just got my cherry bomb extreme that I will put in here shortly too!!!

 

Go with plain 'ol copper Champions.

I tried the pricey plugs on the first change and went back to coppers on the 2nd...can't tell a bit of difference.

 

Plain copper plugs. High end plugs will do nothing.

And unless you have a programmer to turn off the MDS, I would think twice about that muffler.

 

Well I did call and have them order the champions instead of the Bosch spark plugs and the exhaust sounds great. Plus the Champions will save me some money. I guess I could look into an intake with the saved money lol.

 

Champion 570s in mine