The Camaro IROC-Z/28 was introduced in 1984 for the 1985 model year.
This mean machine came with the Tuned Port Injection (TPI) 305 cubic inch V-8 (taken from the Corvette), which boasted 215 horsepower and 275 ft/lbs of torque, the most powerful 305 automatic ever offered in an IROC.

The Camaro IROC-Z was on Car and Driver magazine’s Ten Best list for 1985.