PRO CIRCUIT R-304 Factory Sound Silencer ShortyWill fit:KTM SX125 11-13KTM SX150 11-13- Feature a longer midsection and more noticeable over-rev- Excellent replacement for the OEM silencer while offering impressive performance gains- 6061 T-6 brushed aluminum housing- 304 stainless steel intake tube- Double-walled mounting brackets- FIM-approved 304 stainless steel end cap- Steel Allen head screws for re-building/repacking- Exclusive E-glass pillow packing Does not comply 94db !!!!!