Luckily for us, the Harrop kit isn’t deadly, but it sure makes some killer power! The Harrop TVS1740 kit was designed specifically for the S65 V8 powered E9X M3. ¬†Engineered & manufactured in Australia, this is the world’s first positive displacement supercharger for the S65 engine. ¬†Now, if you are the least bit familiar with - Read More -