I just placed an order for a Trifecta tune on My '06 Cobalt LS(2.2). I just wanna get a little more power, but a couple more MPG's. I know, mine at least, run rich from the factory. That nice film of black exhaust soot on my bumper confirms it. Had it when I bought it new-ish (18,000 miles).
ok start your mess talking engines, what is a trifecta tune? I just joined and am trying to pick up on your lingo. In my lingo a tune is fresh oil, spark plugs & wires, brakes, and radiator flush. (and a tranny fluid change if needed).
TUNING is changing the parameters of the ECU to compensate for new mods you have installed on your car. TRIFECTA is a company owned by a gentleman named Vince that tunes our cars pretty regularly. most of us go through him with tuning. TUNE UP is what you're thinking of.