Patriot Defenders Online Store, Patriot® Defender 2-1 Pipes for most Harley-Davidson® Motorcycles are a unique, patented design, and utilize stepped primary pipes and merged collector to produce dramatic horsepower and torque increases thru the entire power band. Patriot’s innovative exhaust baffle valve design allows you to change the noise volume with a simple adjustment, Loud When You Want…Quiet When You Need. Highly polished 304 corrosion proof stainless steel construction with full coverage chrome heat s.