E85

The above 2024 S650 mustang was running 11.50's at full weight with just Kooks headers, a resonator delete and a Steeda CAI. The power jumped by over 30WHP to 483WHP when tuned with an E85 flex tune. I will not be running the flex tune when I add a supercharger to the car as it is updates a little too slow for safe operation.  While I save up for the boost it is a really fun car to drive.  The great part about it is if I get a "bad" E85 fill up and get only E40 the flex tune will do just fine so currently I don't need to check the E85 at every fill up.