The first stop for any performance modification on a car is typically getting a tune, and HEMI engines are popular enough that owners have several options.

(Bloomberg) -- Hennessey, the modification shop known for adding power to pickup trucks and pony cars and for its record-setting Venom F5 hypercar, will add a tactical division at its headquarters ...

The German tuner has just unveiled the B8 GT ... The shop has worked its usual magic on the mill, upping output to 625 hp and 627 ft lbs of torque. Those figures make the B8 GT the most powerful ...

Japanese tuner Aero Over made the Toyota Crown Sport look even more like a Ferrari. Modifications include a splitter, a diffuser, quad tailpipes, wheels, and fake badges. The SUV was showcased at ...