5.9L Freedom Series Cummins Cylinder Head Performance Fleece Performance 1998.5-2002 (5.9) Inducer: 67mm

Inducer: 67mm

FASS Whisper Technology (FWT) was engineered to meet the stringent demands of today's quiet diesel engines

If you have a stock CP3 pump you are losing fuel flow and rail pressure after 3000 RPM

-Super strong 1 piece machined billet design

-Stainless Steel hardware and QDC/Push-lock fitting provided

5.9L Freedom Series Cummins Cylinder Head Performance Fleece Performance 1998.5-2002 (5.9) Inducer: 67mmFreedom Series Cummins Performance cylinder heads. Each head is manufactured in our state of the art cylinder head machine shop and guaranteed to meet or exceed factory specifications. All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs ensure you'll never worry about a coolant leak under the valve cover again. Whether you are sled pulling, drag racing, or just looking for extra