FMF Racing TurbineCore 2 Spark Arrestor Silencer , Color: Natural, Material: Aluminum 020313 One of the best selling 2-stroke silencers Outstanding power delivery and solid snap Aluminum canister with integrated mounts, formed stainless steel end caps and mandrel bent stainless steel mid pipe Off-road legal with built-in USFS approved spark arrestor A perfect fit with any stock or FMF pipe