Catalytic converters

Part of Exhaust system · about $3,200 to replace

What it is

Close-coupled three-way catalysts plus GPF.

What it does

Convert CO, HC and NOx; the particulate filter traps soot.

How it fails

Rattle means a broken substrate; GPF regenerates on long drives.

Material	Ceramic substrate, platinum/palladium/rhodium wash-coat
Spec	2 × 1.5 l
	600 cpsi
	light-off 300 °C

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