Big Gun Exhaust Systems Designed by 4-Stroke National Champion Mike "Young Gun". All Big Gun Exhaust Systems feature exclusive tapered or stepped headpipes.

• EVO X Series exhaust system is the best cross over 4-stroke exhaust system available today

• You have all the equipment you will need to go from the street to the trail, while meeting all your performance and federal noise regulations

• Comes ready to be a performance or a more subtle quiet pipe to meet the strict 94-96db sound restrictions

• 18 gauge mild steel pipe

• 6061 T-6 aluminum outlet end cap with removable tip for spark arrestor

• 1-3/4 internal stainless steel core

• Billet aluminum outlet end cap with removable tip for spark arrestor

• USFS approved screen type spark arrestor

• Big Gun Vortex Quiet Insert

• Endless strand hi-performance silencer packing with stainless steel screen

• 6 month manufacturer's warranty