41-86 4-speed Big Twin

only for late 77-99 Big Twin models

NEEDLE BEARING

The unit will mount in the same place

Note: See 903343 for a replacement OEM reproduction 6-piece spring & collar set

4" 2:1 Fat Shot System, Chrome Touring 41-86 4-speed Big Twin12, 14 17 FLS, 12, 14 17 FLSTC, 12, 14 17 FLSTF, 12, 14 17 FLSTFB, 12, 14 17 FLSTN, 12 FLSTSE3, 13 FLS 103, 13 FLSTC 103, 13 FLSTC 103 ANV, 13 FLSTF 103, 13 FLSTFB 103, 13 FLSTN103, 14 15 FLSTNSE, 16 17 FLSS, 16 17 FLSTFBS Famous proven tunable disc based performance. Add or subtract discs to optimize power and sound 1. 75" primaries flow into 2. 5" true collector for huge torque gains 3. 5" muffler body flares out to 4" 2. 5" performance core with