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Exhaust system components (Qpwx)

Components include, but are not limited to, the exhaust manifold, the exhaust pipe, the exhaust conditioner, the exhaust flame arrester, and any adapters between the exhaust manifold and exhaust flame arrester. (Source: http://law.justia.com/us/CFR/title30/30-
Broader Term
Emission control systems (Qpw)
Narrower Terms
Exhaust manifolds (Qpwxe)
Exhaust pipes (Qpwxf)
Mufflers (Qpwxm)
Related Terms (Hierarchical)
Exhaust gas recirculation (Qpwe)
Positive crankcase ventilation systems (Qpwp)
Selective catalytic reduction (Qpws)
Emission control devices (Qpwy)