Horsepower Inc. is easily one of the top brands in the V-Twin Industry. HPi's Bagger exhaust systems are truly a work of art. They have been fabricating parts in-house at their Indianapolis facility for over 20yrs and not only do they offer exhaust and parts for Harley models, they are also a professional shop with state of the art equipment, dyno tuning and full builds from front to back. Air in and just as important as air out, and Horsepower Inc throttle bodies are the go-to for any performance build.
To sum it up, HPi's technology, quality and parts is unmatched.