I don't think Ford, or any company, usually announces things like that. But yeah, it's 5.4-5.6. Don't get wrapped up in 0-60 times - it says little about the outcome of a race and it doesn't discriminate against rice burners with decent horsepower and no torque. A WRX pulling the same 0-60 time (which it CANT, stock) will probably be behind the Mustang at 60 mph.