Last week Ford released a great deal of technical data on the 2015 Mustang. While we’re disappointed in the slight weight gain for the GT model of 87 pounds we’ve already explained why this may not be as big of a concern as we previously thought.

Ford has completely rethought the Mustang front to rear in terms of the chassis and this Mustang should be the best handling and best stopping one ever when equipped with the Performance Pack option. In fact if the new GT Performance Pack doesn’t stop in less than 150 feet from 70 MPH we’re going to be highly disappointed.

That’s because Performance Pack GTs will now be wearing the equivalent of 2014 GT500 brakes. Brembo six-piston calipers on the front with huge 14.96-inch (380mm) rotors. With nearly 15-inches of disc on the front the Performance Pack GT will be wearing as much brake rotor as most Fox body Mustangs wore in wheel diameter. The rear brakes will still wear single piston calipers, but will have massive 13-inch (330mm) rotors to help in that department as well.

This massive brake system combined with the all new suspension, and a 28-percent increase in torsional rigidity on the Fastback models should translate well to the track.

For comparison sake consider that the BOSS 302 stopped from 70 MPH in 160 feet and the GT500 with a similar brake system to the ’15 GT Performance packed stopped from 70 MPH in 155 feet. The GT500 had to bear an additional 180 pounds over what the 2015 Mustang will weigh. That weight loss should help translate to better brake response.

EcoBoost Mustangs will receive a Performance Pack as well and essentially the brakes on those cars get upgraded to the equivalent of the standard ’15 GT brakes. Those brakes are said by Ford to be equal to the outgoing ’14 Brembo brake upgrade. They pack four-piston calipers with 13.86-inch (352mm) rotors up front and the same rotors and calipers on the rear as the Performance Pack.

Ford has yet to release any actual performance data on the ’15 Mustang and we’re told the press (including us) won’t have access to a ’15 until sometime this fall. Keep checking here as we delve deeper into 2014 Mustang tech.