1998.5-2002 Cummins 3.5" Intake Horn and Driver Side Intercooler Pipe (WCF100566)

3.5" intake horn and driver side intercooler pipe for the 1998.5-2002 5.9L Cummins. The factory cast horn necks down to under 1.5" and the plastic pipe cracks; this kit replaces both with a full mandrel-bent 3.5" elbow on a CNC-machined flange and a 14-gauge aluminum pipe.

The flange matches the Wehrli intake spacer kit (WCF100338) and includes the gasket and hardware. Two optional 1/8" NPT ports take a boost reference or water-methanol nozzle, and the mounts keep the factory dipstick and harness routing in place. Silicone boots and stainless T-bolt clamps included. No tuning required. Powder coated in your choice of colour.

Part Number: WCF100566

• 3.5" high-flow intake horn on a CNC machined mounting flange
• Matching 3.5" 14-gauge aluminum driver side intercooler pipe
• Intake gasket and mounting hardware included
• Two optional 1/8" NPT ports for boost or water-methanol
• Retains the factory dipstick location and harness routing
• Silicone boots and stainless steel T-bolt clamps
• No tuning required, bolt on
• Custom powder coat finish
• Made in USA

• Passenger side pipe: WCF100564.
• Flange matches the Wehrli intake spacer kit WCF100338.

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