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three-piece muffler reducer set
Improves airflow to the turbo
325" For Wheel Size 23
Hidden hardware for a clean look
Pro X Valve And Spring Kit - 28.SIS2424-2 Gas Gas 450F 2013-2015 FUEL/AIR SYSTEMS three-piece muffler reducer setFeatures Replaces the OEM valves and valve springs Steel, nitrided valves for increased durability and less wear under extreme conditions Stronger valve springs deal with the extra weight of the steel valves Springs are made from premium chrome vanadium steel for higher performance and durability at high rpm Kit contains a set of steel intake or exhaust valves plus a set of specially designed valve springs; can be installed using the OEM retainers,
