- 86-95 FLST Softail
- 41-47 Knucklehead
- 48-65 Panhead
- 66-84 Shovelhead
-
Out of stockKerker 4-into-1 system offers improved horsepower and performance. Reduced weight and increased cornering clearance compared to stock system. Kerker P/N: 128-61001 Applications:
- 73-75 Z1 900
- 76-77 KZ900A
- 76 KZ900B LTD
- 77-80 KZ1000A
- 77-80 KZ1000B LTD