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Well I bought a new set of plugs have had them in since Thursday of last week so far so good Hoping that fixed it

Hey guys I'm having the same type of issue's I own a 07 Speed 3 mods are Injen Cai Cobb Turbo inlet,Cobb shifter weight and short throw shifter hks SSQV in Recric. Ive stretched the Coil springs have upgraded the spark plugs to Denzo colder step. Ive had several misfire codes right now Ive got...