The Exhaust System

THE L47 ENGINE EXHAUST SYSTEM
The exhaust system on the L47 engine incorporates (in order from front to rear)
^ An exhaust manifold rear pipe (Y pipe)
^ A catalytic converter
^ A resonator
^ An intermediate pipe
^ Mufflers
^ Tail pipes
The exhaust crossover pipe is attached to the front and rear exhaust manifolds. A joint coupling, using a round graphite impregnated seal, connects the rear exhaust manifold pipe to the inlet of the catalytic converter. The rear exhaust manifold pipe contains a flex joint. The flex joint replaces the exhaust springs commonly used with bolts that attach the rear exhaust pipe to the manifold and crossover pipe. The intermediate pipe assembly is welded to the converter outlet.