POLARIS RZR TURBO/XP/PRO SHOCKER DOWNPIPE (ELECTRONICALLY CONTROLLED SIDE DUMP!!)This is one of the coolest products we've ever built. With the push of a button, you can open a dump valve on the downpipe. This does two things, first it makes your RZR sound as mean as it feels. Second horsepower & RPM will increase, with most customers seeing a jump of 200 300 RPM when the valve is opened. Want to keep things quieter and more stock like? No problem, just press the button and the valve will shut, with your exhaust retaining a softer