Wehrli

3.5 in. Turbo Intake Horn for the 2020-2024 L5P Duramax with factory style Turbo. The OEM plastic intake horn is 2.4 in. diameter and we experienced a 25HP Gain with our 3.5 in. Horn when used with a...

3.5 in. Turbo Intake Horn for the 2020-2024 L5P Duramax with factory style Turbo. The OEM plastic intake horn is 2.4 in. diameter and we experienced a 25HP Gain with our 3.5 in. Horn when used with a...

WCFab's 4" High flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on the 2020-2025 L5P 6.6L Duramax equipped...

WCFab's 4" High flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on the 2020-2025 L5P 6.6L Duramax equipped...

The 3" High Flow Driver side Intercooler pipe for the 2020-2025 L5P Duramax. Replaces the factory two piece 2 ½" inter cooler pipe with a high flow one piece 3" pipe. It also includes upgraded...

The 3" High Flow Driver side Intercooler pipe for the 2020-2025 L5P Duramax. Replaces the factory two piece 2 ½" inter cooler pipe with a high flow one piece 3" pipe. It also includes upgraded...

The 3" High Flow Driver side Intercooler pipe for the 2020-2025 L5P Duramax. Replaces the factory two piece 2 ½" inter cooler pipe with a high flow one piece 3" pipe. It also includes upgraded...

The 3.5" High Flow Passenger Side Intercooler Pipe for 2020 and Newer L5P Duramax replaces the factory plastic two piece pipe with a high flow, 14 ga. aluminum one piece 3.5" pipe. This part uses a...

The 3.5" High Flow Passenger Side Intercooler Pipe for 2020 and Newer L5P Duramax replaces the factory plastic two piece pipe with a high flow, 14 ga. aluminum one piece 3.5" pipe. This part uses a...

The OEM diameter and we experienced a 25HP Gain with our 4 in. turbo inlet when used with a Max Effort Tune. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure...

The OEM diameter and we experienced a 25HP Gain with our 4 in. turbo inlet when used with a Max Effort Tune. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure...

Built in house at WCFab our traction bar brackets bolt on to the bottom of the axle tube via the axle u-bolts and weld to the frame on the front end. Grade 8 hardware connects the bars to the mounts...

2020-2025 L5P Duramax Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location.Dress up your engine bay by replacing the ugly clear plastic coolant reservoir with our custom powder...

Wehrli 20-24 Chevy & GMC Duramax RCLB/CCSB/ECSB 60 in.Traction Bar Kit - WCFab Red

Stage 1 upgrade for the 2020-2025 L5P Duramax improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory...