And, their superior honeycomb design supercharges your air flow, while still complying with tough air quality restrictions. Our Elantra catalytic converters are a breeze to install, because they bolt onto your exhaust system without welding or pipe bending. And, good news for California drivers, we have a premium Elantra catalytic converter that meets your state's emissions standards! A 5-year, 50,000-mile warranty guarantees you trouble-free driving for the long term! Find out what thousands of our committed customers already know -- we guarantee only the best products and customer service money can buy!