A true race replica system featuring the same 3.5" diameter muffler body and end cap design as the FTR750 flat track race bikes Stainless steel perforated core baffles wrapped in fiberglass for a stealthy exhaust note; baffles are non-removable High-flow catalytic converters Multi-layer heat shields including a 6mm ceramic thermal barrier to guard riders from exhaust heat Meets SAE J2825 sound standards. EXHAUST 2-2GN SS 50ST FTR