FMF Powercore 2 Muffler for Yamaha PW50 1983-2013 024036 Size: YAMAHA 2-STROKE PW50 1983-2009 Style: SILENCER/MUFFLER Color: silver Warranty: All merchandise manufactured by FMF Racing has a warranty against manufacturing defects for a period of one (1) year from the date of invoice. See their site for full details.