Constructed of stainless steel and aluminum for increased strength and durability while giving riders a more affordable alternative to titanium Superior strength mounting brackets for durability Comes with a removable USFS approved spark arrestor making it easy to alternate between off-road and closed course riding Asymmetrical muffler configuration for increased packing volume Most systems equipped with a RC-4 Response Chamber for reduced sound output machined mid pipe to headpipe joint for a better, leak-free fit TIG precision welding Made in the USA. EXHAUST T-6 0112225G