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Tune HP Differences

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Ennis, Texas
#1
Hey everyone.

I'm trying to understand some numbers. I was running an off the shelf Cobb stage 2 93 tune for a couple months before I got my Dizzy stage 2.
The Dizzy made the car more zippy for sure with 4-6 psi more in the boost and more torque. However, my horsepower numbers have dropped about 20hp on average.

Now I know that the Accessport estimate isn't all that accurate, but these numbers are consistent. I even switched back today just to see if I was crazy. I'm not.

Can someone explain this to me like I'm 5?
 


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