Ignition parts
 

Hi all,
Well it's that time of mileage to change out the spark plugs. I know on turbocharged engines you can go 1 step colder to help out on the turbo. Any recommendations? I see the ac Delco iridiums and that's OE. NGK offers an iridium as well. Wanted to pair it with the zzp ignition coils. Thoughts or help?

I'm not sure about the spark plugs. My tuner said the stock OEM ones were prefect. We did not go a step colder. Also, DO NOT BUY ZZP COILS. They are garbage. Just paint the stock ones red if you can't resist the urge. Like the OEM spark plugs, the OEM coils are the best option. Do not mess with them.

Thank you. I'll just get the ac Delco iridium plugs. Keep the coils until they start to not work. Didn't know that zzp coils were junk, they said the MSD coils foul up after a little while.

I stand corrected. I was thinking of the MSD coils. I haven't heard anything bad about the ZZP Coils. Just the MSD ones.

I use Denso Iridium, 1 step colder, with E-85, works like a charm, ZZP has them, they're rated for boosted/high performance applications