Pit Stop USA is The Online Motorsports Superstore! From its humble beginnings as one manas dream, working out of an 800 sq ft. chicken barn 25 years ago, Ray Flugger and his dedicated staff have grown Flowmaster, Inc. into a truly global company with worldwide distribution. The emergence of Hushpower technology is proof of just how committed they are to continually develop and provide solutions for the constantly evolving and escalating sound issues in Motorsports, improving engine efficiency and providing you, our customers, with great choices of sound and unmatched performance for your vehicles. Utilizing a revolutionary patented design that is completely different from the original "chambered" design and all traditional "glass pack" products currently available, the Hushpower muffler design brings to the market a completely new generation of exhaust technology. The attributes of the patented Hushpower mufflers design allow it to be applied in areas that could not or have not been addressed with previous technology. Hushpower mufflers world-class Research and Development team utilizes the finest test equipment available to assist in the development of Hushpower products. With a complete stable of SuperFlow dynos, including two SF-800 series chassis dynos, two SF-900 series engine dynamometers, and an SF-230 Motorcycle/ATV chassis dyno, the Hushpower engineering staff can evaluate and verify the power numbers that really matter, the power numbers "to the ground." Hushpower also employs the latest in sound measurement techniques and equipment, such as Spectrum Analysis to help develop products that meet decibel requirements and produce the most desirable tones. At Flowmaster, we are truly dedicated to supplying our customers with the finest quality exhaust products available andd keeping all of their exhaust products proudly manufactured in the USA. We feature Hushpower HP-2 Series and Hushpower Pro Series Mufflers at low everyday prices.