5. 1980 Chevrolet Camaro Z28
The 1980 Chevrolet Camaro Z28 was hampered by stringent emissions controls, resulting in lackluster performance compared to earlier models. Determined owners turned to the aftermarket, installing high-flow intake manifolds and more aggressive camshafts to reclaim the Z28’s muscle car identity. These upgrades not only boosted horsepower but also restored the Camaro’s reputation as a street contender. Learn more about the Camaro’s transformation and history at Hot Rod Magazine.