Conventional wisdom says exhaust backpressure is bad. If you want to maximize horsepower, the thinking goes, you have to minimize backpressure. Consider the ultimate low-restriction exhaust system: A ...

Q: My car has begun to lose power above 65-70 mph. I’ve noticed it also bogs down when I accelerate hard, like when getting on the freeway. It starts OK and runs smoothly at normal speeds. Any idea ...

Among the many characteristics that differentiate diesel and gasoline engines, a diesel's lack of engine braking is probably the least pronounced-yet one of the most significant. While diesels are ...