u/HeroDanny

Car has cam, headers, intake, catback exhaust. Makes 400 whp.

Tuner recommended going with TR6 plugs. I've seen conflicting reports online, curious what you guys think? I know always go with tuner but he said tr55 are fine too, it's up to me. He said he'd go TR6 but he drives a lot more spirited than I do. I mostly cruise in my car so i'm concerned they may not get hot enough to clean themselves. I am familiar with replacing plugs and comfortable doing so, I guess I could experiment.