Enthusiasts have always begged Mazda for more power in its flagship roadster, the MX-5, but it’s only caved once. The NB Mazdaspeed is the only Miata ever to be graced by anything more than a ...

For the 2004 and 2005 model years, the Mazdaspeed Miata showed the world how forced induction can make the MX-5 more fun than it already is. An IHI turbocharger and 1.8 liters of displacement ...

We're not really sure how to feel about this. It's an engine-swap kit from a company called Miata One in Idaho that gives you everything you need to replace the stock drivetrain in your NA- or ...

Modifying a car to comply with California emissions regulations is notoriously difficult. There are still ways to perform engine swaps that both improve your car’s performance and abide by the state’s ...