89-92 Camaro/Firebird 5.0/5.7L T.P.I. , dual-cat. Edelbrock Shorty Header System, price does not include shipping, call or email for a shipping quote. Actually parts may vary from picture. Up to a full second off your 0-to-60 mph times -- legally! Boost performance and drivability in your vehicle with Edelbrock's Tubular Exhaust System headers. In some cases, you'll shave up to a full second off your 0-to-60 mph times, because the Edelbrock design improves your engine's ability to breathe. Mileage also will improve, because your engine becomes more fuel-efficient. Best of all, these headers give you all this performance with acceptable emissions levels. They accept all stock emissions equipment and are street-legal in all 50 states.