Jeepers who have to pass emissions tests usually know that exhaust modifications downstream of the catalytic converter are allowable as long as the vehicle stays within acceptable sound levels.

Problems with your vehicle’s catalytic converter might first become apparent through poor acceleration, a rotten-egg smell from the exhaust, or the check-engine light coming on. As things get worse, ...

SAN DIEGO (KGTV) — A nationwide vehicle emissions recall is turning into a headache for some drivers who own a Jeep Renegade, Jeep Cherokee, Dodge Dart, and other vehicles made from 2014-2016. “This ...