GM already offers this flexibility with its dual-mode active exhaust system (RPO code NPP), which is available for certain trims of the Chevy Silverado and GMC Sierra 1500. However, the feature is ...
A Dodge Charger Sixpack has been spied sporting a dual exhaust system. The model will have a twin-turbo 3.0-liter inline-six offered in 420-hp and 550-hp versions. The Hurricane engine is more ...