While the standard Performance pack helped the Mustang GT improve lap times, the upgrades were still outshined by the 1LE package available for the Camaro. In our first drive, the Mustang couldn't quite match the Camaro on track. This Level 2 pack may change that. It comes with all the bits from the standard Performance Pack - Brembo brakes with adjusted ABS tuning, unique stability control tuning, a retuned steering rack, a k-brace, a larger radiator and a Torsen rear differential with 3:73 gearing - plus a number of new parts that should help truly match the Chevy. It's only available on cars with a manual transmission.
The most obvious visual difference is the slightly lower ride height thanks to MagneRide suspension. The front and rear stabilizer bars as well as the front and rear springs are all significantly stiffer than the standard performance pack. A new front splitter and rear spoiler help improve aero, giving the car more grip than before.
Arguably the biggest aid to improved grip are 305/30/R19 Michelin Pilot Sport Cup 2 tires at all four corners. That super sticky rubber is wrapped around 19x10.5 wheels in the front and 19x11-inch wheels out back - 1.5 inches wider than the standard Performance pack wheels. Those are the same tires that come on the Shelby GT350R, Chevy Corvette Z06 and Mercedes-AMG GT R.
According to Ford, engineers working on the project did so on their own time before bringing their work to management. Parts like the front splitter from the old Boss 302 Laguna Seca were used in development. 3D printing was used to help with rapid prototyping.
No word on pricing has been announced, but expect it to be a significant step up from the $3,995 GT Performance Pack. For reference, the 1LE Performance Package is a $7,000 upgrade on a standard Camaro SS.