Gain horsepower and torque with this straightforward upgrade. Lifetime filter can be cleaned and re-oiled, but the big news here is that we've streamlined the airflow in the 05 Mustang to the point that a computer re-flash isn't just an option, it's required! Check out the SCT Xcalibrator - the perfect tool for the job!

We've found between 16 -20 more rear wheel horsepower with this kit.
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so is there no gain without the reflash? or a gain just not to full potential?

 

I've found the same gain with just a good tune. "Predator". So, what would be the selling point of the cai, an extra 10 maybe?