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[/B Hello- I am looking to get my plugs changed ... is it better to get a hotter or colder plug and what brand??
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If you're Naturally Aspirated (2.2L L61/LAP or 2.4L LE5), keep with the stock AC Delco Professional Platnums. If you're running the SS/SC and it is stock or just GM Stage II, keep with the stock plugs on those. The SS/TC I believe uses AC Delco irridiums.

If you're heavily modded and using forced induction, running a higher compression setup and you must use colder plugs, try sticking with NGK Iridiums.
 
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