These C2 & C3 Corvette Header Exhaust Systems have been tested on the dyno and made between 15 & 20 additional rear wheel horsepower consistently! The small block header exhaust systems are comprised of 1 5/8" tuned length primary tubes and a 3"collector necked down to a convenient 2.5" slip fit termination. These Stainless Works 1963-1967,1968-1982 Corvette Small Block Exhaust Headers are supplied in a traditional mill finish.
Learn more from the following Mid America Motorworks Knowledge Library article:
Corvette Short Tube and Long Tube Headers - How are they Different