Wehrli 20-24 Duramax L5P Stage 3 High Flow Bundle Kit - Gloss White

The OEM resonator and middle boot joint for improved flow and durability and includes high quality reinforced silicone boots and stainless t-bolt clamps for superior temperature resistance and boost pressure holding capabilities. 3.5 in. Passenger Side pipe features a CNC machined flange with a double o-ring seal and an upgraded silicone boot in order to withstand higher boost pressures than the factory components to increase reliability and eliminate blown factory boots and horsepower robbing boost leaks. Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck. On the exhaust side our 3.5 in Down Pipe replace the restrictive crushed factory part for improved flow. Black Ceramic Coated and heat wrapped for improved thermal efficiency. Connects to the DOC (Diesel Oxidation Catalyst) outlet flange and mates with OEM exhaust system front pipe with the 4 bolt style flange connection and includes bungs for OEM sensors.

Additional Information

Wehrli Custom Fab High Flow Bundle Kit Stage 3, for 2020-2025 Duramax L5P, Gloss White

Part Type

Air Intake Kit

• 3 in. Hot Side Intercooler Pipe & 3.5 in. Cold Side Intercooler Pipe
• 3.5 in. Ceramic Coated Down Pipe with Heat Wrap pre-installed
• 4 in. Aluminum intake pipe with Air box enclosure, dry filter assembly and Outerwears pre-filter cover, 4 in. Intake horn with PCV port and Surge Ring
• CNC Machined Flange with Double O-Rings provides an improved sealing surface to eliminate boost leaks.
• Custom Powder Coat Finish
• Made In the USA
• NO Tuning required, bolt on!
• OEM Clip Ring Design at Y-bridge connection replaced by high quality silicone boot and stainless steel t-bolt clamps for improved sealing and ability to hold higher boost pressures without leaking
• Retains factory connection points and sensors
• Silicone Boots, Stainless Steel T-Bolt Clamps, O-Rings, Intercooler Outlet Clip, Installation Hardware

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information