Originally Posted by BigHemiSrt
Oh boy, already starting to see the "under rated" bs. Now this is going to mean the ZL1 is making 600+bhp.
That's because they're choosing to be non-observant. If they actually look at the dyno sheets, they'll see the Mustang dyno only shows 495HP. That 518 number was on a Dynojet. And let's not forget it was probably pretty cold and that's probably why they didn't bother turning the fan on in front of the car.