Pro Circuit 304 silencer Kawasaki KX500 88 03 Alpinestars Manufacturing using a 100% cold FPTI KXF Manufacturing using a 100% cold forged process for extra strength these assemblies are supplied with all the standard adjusters and rubber boots and are fully interchangeable with the OEM item Husqvana Year Pitch Part Number TX 125 17 20 520 FXRS 50 50 TC 125 14 20 520 FXRS 50 50 TE 125 14 20 520 FXRS 50 50 TC 250 14 20 520 FXRS 50 50 TE 250 14 20 520 FXRS 50 50 TE 300 14 20 520 FXRS 50 50 FE 450 14 20 520 FXRS 50 52 FE 501 14 20 520 FXRS 50 50 Husaberg Year Pitch Part Number All Models 00 08 520 FXRS 50 50 FE 250 13 14 520 FXRS 50 52 FE 350 12 14 520 FXRS 50 52 FE 390 09 13 520 FXRS 50 52 FE 450 09 14 520 FXRS 50 52 FE 501 13 14 520 FXRS 50 50 FE 570 09 13 520 FXRS 50 52 TE 125 11 14 520 FXRS 50 50 TE 250 11 14 520 FXRS 50 50 TE 300 11 14 520 FXRS 50 50 6061 T6 brushed aluminum silencer body Kawasaki KX500 88 2003