LS2 Plugs
I'm driving down for a tune and asked what plug he wanted and he said the TR6. After I got off the phone with him I thought about it and remembered the head guy running 55s in all the N/A cars. Now, I'm not sure which to run in the thing. My gut says that I should run what the tuner calls for but what do you think the chances are that he is off? I've got loads of faith in the guy from others, this is my first time with him.

