Dave Rash, The Pope of Pipe, creates some of the best performing and sounding exhaust systems available today at D&D Performance Exhaust. After thirty years and 250,000 pipes later the ole Pope knows a thing or two about pipe. He created a retro reverse cone exhaust pipe made from Stainless steel for the Brass Balls Bobbers / Bikernet / IronWorks giveaway Bobber. The pipe comes with a Fau Ti finish that resembles titanium as it wears.