Recommended Spark Plug?

[Slizatch]

Wondering if anyone has any plug recommendations? I know that some vehicles don't do well with platinums etc. Wondering if anyone has strong feeling either way?

[shorod]

Your LS probably came with platinum plugs. I'd just suggest not going with double platinums, or 4-electrode platinums, etc.

I just put Iridiums in my 2004 LS8 and noticed no difference. The original platinum plugs only had 34k miles though, so no difference is a good thing.

-Rod

[BeZerK2112]

I have found that replacing plugs with the stock plugs is the best thing. You can call your local parts store to find out what the stock plugs are, or the dealership.