We sat down with Greg Miranda, one of the owners of SP Concepts, and got an inside look at what goes into designing and manufacturing performance exhaust systems right here in Southern California. Greg takes us back to where SP Concepts started, how the company has evolved, and what it takes to develop an exhaust system from an idea into a finished product. We get into the R&D process, design, testing, manufacturing, and the amount of work that happens behind the scenes before an exhaust ever makes it onto a motorcycle. Then we get the full tour of the SP Concepts facility. From development and fabrication to production and the people making it all happen, we were extremely impressed with the entire operation. In this video: * The story behind SP Concepts * How motorcycle exhaust systems are developed * Exhaust R&D and testing * Design and manufacturing * Behind-the-scenes factory tour * Performance Harley-Davidson exhaust systems * Made-in-SoCal manufacturing * The people behind...