
Pontiac Firebird Third Generation 1985–1988
1985All Firebird models underwent redevelopment to boost sales as a number of power train improvements were introduced. The LB9 Tuned Port Injection (TPI) 305 was released, replacing the 305 H.O. as the high-output engine: using a tuned runner design, the LB9 produced 215 hp, which brought it suitable attention from buyers despite being unavailable with a manual transmission. The carbureted V6 was replaced with a new, multi-port fuel-injected 2.8L V6 making 135 hp. A Borg-Warner 9-bolt differential was made available for the first time, and the new positive traction rear end was said to be stronger than the Dana 44.
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