Horsepower by Hermann is a Maryland based full service Mustang speed shop specializing in 5.0 Liter and 4.6 Liter Modular
Mustangs. We offer complete performance services from rear end gear changes to full competition engines, race car preperation, and installation.
We've been serving the Mustang community with an eye towards
detail and technical excellence since 1993. You will not find a Mustang shop in our region with more experience and knowledge of these cars.
