GGB Exhaust Mountain Muffler For 2005-2011 Arctic Cat M5/M6 EFI/M7/CARB/M8/800/500/600 The Mountain muffler is a super lightweight, straight through flow design with an aggressive exhaust note. System fits securely in the stock location using stock mounts and is guaranteed to provide performance levels as good as or better than stock.GGB Advantage:Performance GuaranteeIncreased throttle responseAggressive exhaust noteHuge weight savingsNo fuel modsSimple installSecure fitFuel and clutching mods are not necessary prior to installation. GGB two stroke mufflers are flow benched developed for back pressure against the stock muffler and will perform efficiently in any application where the stock muffler would be used.GGB Mountain mufflers are designed to be used in areas where increased sound levels are not an issue. These mufflers are loud when you open the throttle. Please use accordingly. Sound level increase over stock (dbA) Idle + 4-6 / Under load + 10-18.Brand: GGB ExhaustPart Number: 761-0030Fitment:2007-2009 Arctic Cat Crossfire 500 EFI2007-2011 Arctic Cat Crossfire 600 EFI2007-2011 Arctic Cat Crossfire 600 Sno Pro2007-2009 Arctic Cat Crossfire 800 EFI2007-2009 Arctic Cat Crossfire 800 Sno Pro EFI2005-2006 Arctic Cat M5 141in2005-2006 Arctic Cat M5 EFI 141in2005-2011 Arctic Cat M6 EFI 141in2005-2011 Arctic Cat M6 EFI 153in2005-2006 Arctic Cat M7 Attack 20 Carb 153in2005-2006 Arctic Cat M7 Challenger Carb 153in2005-2006 Arctic Cat M7 EFI 141in2005-2006 Arctic Cat M7 EFI 153in2005-2006 Arctic Cat M7 EFI 162in2007-2009 Arctic Cat M8 EFI 141in2007-2009 Arctic Cat M8 EFI 153in2007-2009 Arctic Cat M8 EFI 162in2007-2009 Arctic Cat M8 Sno Pro EFI 153in2007-2009 Arctic Cat M8 Sno Pro EFI 162inNote: Image is for reference only, actual product may vary slightly.