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Artryan · 07-28-2019, 11:01 AM

I'm having trouble finding info by searching. I have the LS3 and I'm getting reading order headers and a tuner from RDP. Since I'll be removing the plugs to remove the OEM headers, I figured I'd replace the plugs wince I assume they're the originals.

I'm assume I need the .040's but it seems most of the iridium plugs seem to be geared towards forced induction, or highly modified motors. My only other mods are CAI and axle back exhaust. I know it won't make a major difference, but I am just curious as to what you guys would advise I buy to replace the current ones?

Thanks.

07-28-2019, 11:01 AM	#1
Artryan Drives: 2018 ZL1 , 2020 GMC AT4 Carbon Pro Join Date: Apr 2019 Location: Lexington, KY Posts: 132	Best spark plugs? I'm having trouble finding info by searching. I have the LS3 and I'm getting reading order headers and a tuner from RDP. Since I'll be removing the plugs to remove the OEM headers, I figured I'd replace the plugs wince I assume they're the originals. I'm assume I need the .040's but it seems most of the iridium plugs seem to be geared towards forced induction, or highly modified motors. My only other mods are CAI and axle back exhaust. I know it won't make a major difference, but I am just curious as to what you guys would advise I buy to replace the current ones? Thanks.