I was on the same boat with you on not touching the engine (I'm a very conservative person). But I've been thinking of getting a tune later down the line. If I remember correctly, aftermarket CAI will have our Z running a bit lean. *Someone please correct me if I'm wrong*
Is there a specific reason on why you wouldn't want your car getting a tune?
Like others mentioned, CAI,HFC/TP, CBE, and a proper tune can easily put out 310+ whp. The stock avg dyno is around 280whp (on a good day)
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