The latest version of the Powercore 4 design incorporates a hi-flow core which has more surface area to absorb more sound while flowing more exhaust, Constructed with an extruded aluminum canister, a stainless steel mid-pipe that is MIG/TIG welded and has space-age internal packing, Lighter, stronger and more powerful than stock exhausts, Powercore 4 S/A has a U.S. Forestry approved maintenance free, stainless steel spark arrestor screen, LO RECIBES EN 7 A 10 DIAS , ENVIAMOS DE EUAHonda2023 - CRF125F2022 - CRF125F2021 - CRF125F2020 - CRF125F2019 - CRF125F