This is one of the coolest products Silber has 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 more gentle note as the gas will travel as it originally did, through a stock or aftermarket muffler. You literally get the best of both worlds with this product.
Net takeaway? Press the button and your machine sounds like a Group B Rally car. Press the button again and it sounds stock (though it still has some performance gain of the freer flowing downpipe).
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