The 2025 Mini JCW Hardtop and Convertible have a secret exhaust outlet that is equal parts cool and weird. You wouldn’t know ...

To help build out a working filtration system, [Fab] needed some valves, so set about printing some of his own. [Fab] went with a simple butterfly valve design, similar to the throttle valve in ...

A butterfly valve stops the exhaust gasses from escaping. Big rigs usually have exhaust brakes that help drivers stop massive vehicles with little to no help from the conventional friction braking ...