EPA slaps Sinister Diesel with $1M emissions fine amid crackdown

Sinister Diesel logo (via Facebook)The EPA this week announced $1 million in fines for a diesel performance parts manufacturer for tampering with emissions devices. Sinister Mfg. Company, Inc.—doing business as Sinister Diesel—pleaded guilty to charges of conspiracy to violate the Clean Air Act and defraud the United States, and with violating the Clean Air Act by...