What are the factory collector sizes for C2 Corvette original N14 side exhaust pipes? Original C2 Corvette side exhaust pipes (Regular Production Option N14) utilize two distinct manifold collector sizes: a 2.0-inch front inlet diameter and a 2.5-inch front inlet diameter. Standard 250 hp and 300 hp 327 ci small-block V8 engines use the 2.0-inch…
Original C2 Corvette Side Exhaust Pipes: NOS GM Factory Chambered Piping