Exhaust Headers for Chevrolet Corvette C5 (2005-2013)High Flow Long Tube Exhaust Headers for 2005 2013 Chevrolet Corvette These 1 7 8 inch long tube stainless steel exhaust headers replace the restrictive factory cast manifolds to maximize exhaust scavenging and significantly increase high RPM horsepower. The Stock Corvette Restraint The OEM cast iron exhaust manifolds and heavy factory catalytic converters on the C6 Corvette are designed primarily for emissions compliance and cost effective mass