Spectre Performance muscle car heat shields help simplify the creation of a cold air intake system for your carbureted/throttle body injected engine or LS engine conversion in classic Chevrolet muscle cars. These fit Camaro, Chevelle, Impala, Nova, and C-series pickups. Spectre Performance muscle car heat shield kits are constructed from lightweight 5052 aluminum and finished with a durable silver powder coating. They are designed to accommodate an air filter adapter/velocity stack up to 4” in outer diameter. These heat shields are easy to install and make a big difference in looks and performance.