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my recent research seems to suggest: AC Delco plugs/wires if you want to stay OEM, or AC delco plugs/msd wires if you want to go headers. I am personally running NGK plats/OEM wires but will probably go MSD wires in the near future. I am eventually going to get headers, MSD wires allow you to angle the plug by bending it slightly...
MSD wires and NGK plugs are the way to go. I've been using them since my cam install without any issues.
You use them because of your mods.
But the op's car is stock. So no need for those. Stock is more than good for his car. Plugs and wires. No need to get fancy.
I just did wires today on my car with cam CAI and tune. I went stock as suggested by my tuner and mechanic as I trust them with my life.
I do have ngk plugs but I have a few mods but no headers.
With my header install I figured I would change them out since the job was half done anyways, went with MSD and AC Delco and DEI boots Why, just seemed right
NSF
I'm at 145K on the original wires. They've been on and off the plugs at least a dozen times. Nearly 500 passes at the track and over 6K rpm and 100 mph weekly at a minimum. I'll change wires if I get a misfire or if someone would guarantee as little as a .005 ET improvement.
I'm at 145K on the original wires. They've been on and off the plugs at least a dozen times. Nearly 500 passes at the track and over 6K rpm and 100 mph weekly at a minimum. I'll change wires if I get a misfire or if someone would guarantee as little as a .005 ET improvement.
Christopher Martin, aka Subfloor, is also using OEM wires and lots of other stock stuff, while running low 10's with a bunch more passes than me. It's proof that some of the stock stuff works real well.
My C6 is a daily driver. I changed plugs and wires at 83k just for the FUN of it. I went with stock, since they seemed to work well. The original 41-985 OEM plugs were discontinued, replaced with the 41-110. I've included a photo showing old and new plugs. You can see that the tip of the plugs have eroded and the gap has widened considerably. But even with the larger gap the car ran fine. There was no noticeable difference after the replacement, just a sore back from leaning over the fender.
My C6 is a daily driver. I changed plugs and wires at 83k just for the FUN of it. I went with stock, since they seemed to work well. The original 41-985 OEM plugs were discontinued, replaced with the 41-110. I've included a photo showing old and new plugs. You can see that the tip of the plugs have eroded and the gap has widened considerably. But even with the larger gap the car ran fine. There was no noticeable difference after the replacement, just a sore back from leaning over the fender.
I think AC plugs are underrated. I wish they made more stuff for non GM like for motorcycles.
I really don't get the write-ups, that say get NGK or MSD if you mod the car with headers. Bottomline, you should get the right heat range plugs for the right application. If AC has the right plugs for the modifications, I'd like to know why to change brands? I can get that you might need extra insulation for high heat conditions.
06-17-2017, 01:31 AM
Which spark plugs/wires?
OEM and be done with it!
Why, just seemed right 
