JBA Performance Exhaust Headers - 02-08 GM Truck 4.8/5.3L Doug's Headers Filler necks are machined

Filler necks are machined

Blue anodized billet aluminum

1970-1973 Mercury Cougar

and 1/8” nylon line and fittings are included

A vacuum reserve canister captures an extra shot of vacuum from your engine for your power brakes

JBA Performance Exhaust Headers - 02-08 GM Truck 4.8/5.3L Doug's Headers Filler necks are machinedWhen it comes to performance exhaust systems, most people are looking for three things: power, sound, and quality. JBA exhaust systems deliver the best of all three, giving them both great looks and performance. One of the first performance upgrades typically made to a vehicle is the addition of a performance exhaust system. While there is a high demand for performance sound, the capacity for power in the JBA exhaust systems gives JBA the extra edge.