EXO Stainless ranks as the toughest exhaust in line, built resilient with high-strength 304 stainless steel from the beginning to the end. This exhaust system promises durability even under the harshest riding circumstances and use. Transitioning from the original EXO Series, Big Gun has upgraded the aluminum muffler with a stainless substitute, opted for a TIG-welded stainless-steel plate instead of the aluminum base plate, and has adeptly incorporated a stamped stainless badge for a finish of elegance.