1991 Pontiac Firebird

In 1991 all Pontiac Firebirds have undergone restyling and got new noses, a bit designed from Banshee, the fourth generation platform. Also in this year the Firebird convertible was again introduced. This new styling gave improvement in the Pontiac Firebird's sales in the market. The styling included the Trans Am's ground effects. Hence the Firebird base model has available new Trans Am ground effects. Fiberglass constructed flat wrap-around wing spoilers was made available for both the Trans Am and Formula.

The N10 dual cats were made standard for all L98 vehicles. Two pieces of taillights were added to Trans Am and GTA, with PONTIAC that was scripted in orange across the panels. The center high mounted stop lamps were moved to inside top edge of the hatch. Another change was the body sealants that gave more rigid look to the Firebird. Also, the firebirds with tops were sent to ASC to be converted to convertibles that have been through the GM. Convertibles feature engines such as the LHO 3.1-liter V6, L03 5.0-liter V8, and LB9 5.0-liter V8.