Depends on the car...
My first couple pulls pre tune (on mustang dyno) were 275-280whp.
After 301whp with a higher redline and a nicer curve.
For me, it was worth it. For you, going on inflated dynojet numbers, you think it isn't.
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2010 Magnetic Black Metallic 370Z 6M
stillen gen 3 CAI - topspeed test pipes - invidia gemini CBE - UpRev tune
301whp (HP Logic Mustang Dyno)
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