An intercooler cools air that’s been compressed by a supercharger or turbocharger before it enters a vehicle's engine. The laws of thermodynamics mean that compressing air necessarily heats it up. But ...

Excess heat is the enemy when it comes to internal combustion engines. Operating temperature is ideal, but any degree above that starts to slowly sap power, put fluids to the test, increase friction, ...

Saab opened the floodgates for reliable turbo performance back in the '80s, and automakers haven't stopped innovating since. BMW used single and dual turbochargers to make the most of its engines' ...