Master Muffler is taking action to help protect customers and employees. The U.S. Department of Homeland Security has deemed automotive repair and maintenance facilities as essential, so Master ...

The dual-mode exhaust system features electronically-controlled valves that can be in one of two positions: opened and closed. When the valves are closed, exhaust gasses are carried via their typical ...

PACCAR has patented a method for starting a vehicle’s engine that involves rotating the crankshaft while keeping the exhaust valves of the combustion chambers open before fuel injection. The engine ...

You didn't think a company as advanced as Porsche would stop at a loud mode and a quiet mode, did you? Of course there's much more than that. Beyond simply opening the exhaust valves, the patent ...

C8 Corvette owners looking to uncork their mid-engine masterpiece with a new cat-back exhaust system can now turn to aftermarket tuner Hooker and its BlackHeart series for the latest in free-flowing ...