: Used converters "wear out" like any other engine part; a used one may already be clogged or inefficient, causing you to fail emissions tests shortly after installation. 🛒 Safer Alternatives
: In the U.S., the primary legitimate reason for a private party or business to buy a used converter is to recycle the precious metals (like platinum and rhodium). can i buy a used catalytic converter
: Most professional shops will refuse to install a used catalytic converter because they risk heavy fines for "tampering" with emission systems. : Used converters "wear out" like any other