Vibrant 2536 4-2-1 Header w/ High Flow Metal Core Catalytic Converter 05-08 Chevrolet Cobalt SS/SC
Replaces restrictive OE manifold to produce HP gains throughout the power band. Combine with our StreetPower 3" Cat-Back system for even better power gains. Will bolt up without any modifications to both the stock exhaust system and Vibrant's STREETPOWER Cat-back for the Cobalt SS/SC. Downpipe includes ultra high flow metal core catalytic converter. Features 45mm OD Primaries and a huge 2.5" Outlet.
Please Note: When installing this header on your car, please ensure your vehicle's Air/Fuel ratio is no richer than 11.8:1. Extremely rich A/F ratio's can result in premature failure of the catalytic converter included on this header.