Double the parts can mean double the trouble in vehicle systems, but dual exhausts reduce pressure, increase efficiency, and ...

Mazda has a neat idea for what is basically a CO2 diaper that could be part of combustion-engine exhaust systems. Mazda has a creative idea for algae-based biofuel and an exhaust system that, ...

The idea that Harley-Davidson engines need exhaust backpressure to produce power is one of the most persistent beliefs in the motorcycle world. Riders who bolt on straight pipes often report a loss of ...

Hopefully, you’ve read our last installment of the Project T-top Coupe saga, and you’re up to speed with how the trunk-model 1986 Ford Mustang LX with removable roof panels fared in its first runs on ...

Endurance Warranty, Omega Auto Care and American Dream Auto Protect Leaks, loud sounds and a check-engine light are all signs your exhaust system is struggling. Your exhaust can be very costly to ...

More liters don't automatically mean more horsepower. Here's why a smaller engine can sometimes make significantly more power.

Naturally aspirated engines lack turbos or superchargers, yet enthusiasts love the way they deliver power. Here's why.