The regular Z28 name returns since GM was now unable to make IROC-Z's. All lower valances and rear bumper on '91 Camaro's were redesigned.1991 Chevy Camaro side valances had scoops in front of each wheel. 1991 Chevy Camaro Z28 got a large Ferrari F40 style rear wing. On the Z28, `CAMARO' on the front license plate panel was replaced with a red bow-tie emblem. The hood louvers on the previous year's IROC were replaced by hood `power blisters' on the '91 Camaro Z28. Engine designations were removed from side valance badging and only appeared on the rear bumper.The standard wheel for the Z28 was a newly styled 16 inch wheel. Standard tires for the Z28 were P235/55R-16 tires; P245/50ZR-16 tires were optional, and standard on 350 Z28 and Z28 convertible. 1991 Chevy Camaro RS was available for the first time with 16 inch wheels. Tires for the 16 inch wheels on the RS and RS convertible were P235/55R-16. RS also got the grid taillights like the Z28. The CHMSL was moved from the spoiler to the inside top edge of the hatchback glass. The slightly smaller non-CHMSL spoiler from 1982-1986 replaced the CHMSL spoiler on the RS. G92 packages with air conditioning (C60) and without air conditioning (C41/1LE) still available on Z28. All 350 Z28's were required to have one of the G92 packages in 1991. G92 was not available on the '91 Camaro Z28 convertible (as was the case with the previous year's IROC-Z convertible).289 1991 1LE LB9 (305 TPI) Z28's were built. 175 1991 1LE B2L (350 TPI) Z28's were built.

B4C `Special Service' police package became available to law enforcement agencies only. Cars were RS coupes with Z28 5.0 TPI or 5.7 TPI drivetrains and Z28 suspensions. These cars came equipped with the 16 inch wheels and P245/50-ZR16 tires, engine oil cooler, rear disc brakes, and limited slip axle. Midyear, the 1LE 11.86 inch front brakes and HD calipers became optional for the B4C. This package was the only way to get air conditioning and the HD front brakes. There were 592 1991 B4C Camaros built.