1971 Corvette Exhaust Manifold set. 3846559A (LH) and 3989036 (RH). Original GM. No AIR holes. Beautifully detailed. Removed from my NCRS Top Flight 1971 Corvette. As new. $500 plus shipping. Price is OBO! I can carefully package and ship Post Office. Located in Delisle, SK, Canada (north of Montana). Manifolds are better than new.