Each Fat Boy 4 repacking is built to a specific size to match your Fat Boy 4 muffler.
Packing is Specially Designed to Reduce Noise

FB4-RP950 Repacking (9.5”) Fits 11” Muffler $34.95
FB4-RP110 Repacking (11.0”) Fits 12” Muffler $34.95
FB4-RP135 Repacking (13.5”) Fits 15” Muffler $34.95
FB4-RP165 Repacking (16.5”) Fits 18” Muffler $39.95