These changes included an intercooler, plus other changes to produce 175 hp (130 kW) at 5300 rpm and a flat 175 ft·lbf (237 N·m) torque curve.

Not included were any of the durability changes to the short block (forged crank, full floating pin, stouter connecting rods, etc.)

Luckily, the Shelby engines have proved to be reliable even without the durability enhancements of the production Turbo II.

Shelby Automobiles purchased the last 1,000 Chargers built and they were shipped to the Whittier factory for modification.

The differences include a non-EGR turbo, Shelby valve cover, wider Shelby windshield decal (no CS logos), different and more extensive tape graphics package, no reference to Dodge on the outer body, black/white speedo overlay, a four-digit serial numbering system on the dash plaque, wider Mobil 1 plaque installed on the radiator support, and Shelby Centurion II wheels.