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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Ships Partially Assembled
enhancing efficiency
free flowing exhausts
Whether it’s racing through the mountain trails
EXHAUST VALVE SPRING YELLOW Model_RZR Pro R Ships Partially AssembledPolaris exhaust valves open with cylinder pressure. As you go up in elevation, cylinder pressures are reduced causing exhaust valves to open later than they should or in some cases not at all. This can cause poor and inconsistent top end horsepower. Changing to lighter exhaust valve springs allows the exhaust valves to open at the proper time maintaining proper top end horsepower and running consistency
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