As the post title states!

What is a good plug to throw in this thing!

The dealer is saying I HAVE TO PUT FACTORY PLUGS in it.

I ordered some good iridium plugs but now I am scared! Is he buffaloing me??

 

Going with a unknown plug in a hemi is a roll of the dice. I will be putting stock back in mine.

 

i did too, no use in giving them an excuse to deny warranty claims especially if you have the lifetime policy.
i picked them up for around $50 from mopardiscountparts, shipped.

 

I have 0ver 100,000 and run platinums , you can cross over at the auto parts store. Changed mine at 45,000 . Had 1 foul out around 80,000 in cyl # 7 . changed the 2 in # 7 and going strong .

 

i just changed my plugs at 30k in my 09 hemi to autolite double platinums. absolutely nothing funny happened and the truck runs great ... on common route up to moms i may have noticed slightly better mpgs, but that is probably just the better spring weather and the fact that the plugs are new, not necesarily platinums.

on a side note, the other plugs were far from "needing" replacement.

autolite has a 1.50 per plug mail in rebate right now, so getting 24 of my 70 something bucks back.

job wasnt really that bad, just need to use a series of short extensions to get the back plugs behind the brake booster. believe i used a spark plug socket, 3 inch, 1inch and stubby extension... inserted and removed one at a time.