Do you think I should get some 1 stage cooler spark plugs if I just have cobb stg2. I have an 06 TR daily driver. I read the unabomber thread and it said to move 1 level down for every 75 - 100 HP increase. So I guess I just answered my question, NO. If I did go with 1 stage cooler spark plugs would I lose power?

I went with a one step colder plug on my Cobb Stage 2 and I didnt notice a difference. If you plan on doing any more mods then I would go ahead and do it.

With a 2006, I'd wait till you put more miles on those stock spark plugs.

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