Starting Line Products 14-118 Exhaust Valve Springs - White electrical-turn-signals-components-wiring 2015-2017 Ski-Doo Expedition SE ACE

2015-2017 Ski-Doo Expedition SE ACE 900

For use with custom 13in

2003-2007 Arctic Cat 400 4x4

2009 Buell XB12XT Ulysses

Made from 6061 Aluminum

Starting Line Products 14-118 Exhaust Valve Springs - White electrical-turn-signals-components-wiring 2015-2017 Ski-Doo Expedition SE ACELoad at . 63in. 2. 8lbs. Load at 1in. 1. 6lbs. 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.