Polaris 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.
Order 2 per engine
SLP
Polaris 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...
SLP
Polaris 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...
SLP
These trick flapper valves are installed in the back side of the airbox on Polaris 6/7/800 models to provide additional airflow to the engine. They are activated by airbox vacuum. When the stock...
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