4dxtreme Custom Pipes announces the continued availability of its patented Psycho Mufflers, a slip-on exhaust system engineered for Harley-Davidson Touring motorcycles. Built in the U.S. and protected by U.S. patent technology, Psycho Mufflers are designed to deliver a deep exhaust note while maintaining performance.
Psycho Mufflers are designed to work with factory Harley-Davidson catalytic converter headers on Milwaukee-Eight Touring models. They feature a patented internal core engineered to improve exhaust flow and maintain fitment with factory components.
“Our goal has always been to build a premium American-made exhaust that combines patented engineering with the aggressive sound Harley riders expect,” said Reginald Carter, founder of 4dxtreme Custom Pipes. “Psycho Mufflers were developed for riders who demand performance, quality and originality.”
Key Features
- Patented U.S. exhaust technology
- Designed for Harley-Davidson Touring models
- Engineered to perform with factory catalytic converter headers
- Chrome and black finish options
- Removable internal core design
- Made in the U.S.
- Built from American materials
- Direct slip-on installation
4dxtreme Custom Pipes is seeking new dealer, distributor and OEM opportunities throughout North America. Motorcycle dealerships, performance shops, distributors and industry partners are invited to learn more about becoming authorized dealers.





