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Discussion Starter · #1 ·
I just want something that is better than stock, but don't want to spend an insane amount of money.

What is recommended?

Thanks!
 

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hey man, do you know what the stock plug is? should say under the hood or in your owners manual. The manufacturers don't have 2010 app data out yet...
 

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Discussion Starter · #3 ·
I didn't have a manual, had to download it. Here is what I found.


Spark Plugs - 5.7L Engine LZFR5C-11 (Gap 0.043 in [1.09 mm])
 

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So your stock plug and its upgrade equivalent are OE only - they'll only be available through the dealer for the next few years. If you wanted to get the "official" upgrade plug from the dealer the part number is PLZFR5B13EG but I would take a guess it will likely be somewhere around $25 per plug.

The differences between your stock plug and alternatives that are currently available are minimal. The main difference is the stock plug has the metal shell that extends maybe 2-3mm further. If it makes any noticeable impact we can just close the gap a little bit.

Alternatives that are available are:
Pulstar DG-1c - Pulstar's standard nickel plug at $7.95 per plug
Pulstar DG-1i - Pulstar's iridium version at $12.95 per plug
NGK ILFR5B-11 - NGK Long life iridium plug at $12.06
NGK LFR5AIX-11 - NGK iridium plug at $8.48
Denso IKH16 - Denso's iridium power plug at $9.99
 
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