Fuel system

Inlet system

Exhaust system

Lubrication system

Control the noise

Control the emission

Control the temperature

Control the fuel consumption

Between muffler and tail pipe

Between exhaust pipe and muffler

Between tail pipe and resonator pipe

Between engine head and exhaust manifold

Zinc and molybdenum

Palladium and platinum

Asbestos and ceramics

Chromium and vanadium

Low noise

High temperature

Low temperature

Excessive back pressure