About this product
Description
The WCFab Stage 2 High Flow Bundle is the ultimate air-management overhaul for your 2020-2026 L5P Duramax. This comprehensive kit combines a full 4-inch cold air intake system with heavy-duty hot and cold side intercooler pipes, eliminating every restrictive plastic component and leak-prone rubber boot between your air filter and the engine. By upgrading to smooth, mandrel-bent 14-gauge aluminum, you’ll see immediate improvements in turbo spool-up, throttle response, and overall engine efficiency.
On the intake side, the oversized 4-inch horn and airbox enclosure draw cool air directly from the factory hood ram-air duct and inner fender. After the turbo, the kit replaces the narrow 2.5-inch factory piping with a massive 3-inch driver-side (hot) pipe and a 3.5-inch passenger-side (cold) pipe. Featuring CNC-machined flanges and double O-ring seals, this bundle is engineered to hold higher boost pressures than factory components, making it a "must-have" for both stock trucks and high-performance applications.
Part Number: WCF100414
Features
- Complete Airflow Solution: Combines Stage 1 and Stage 2 kits to optimize both the intake and charge-air cooling paths.
- Massive 4" Intake: Replaces restrictive factory plastic with 4" aluminum piping and an oversized intake horn for maximum velocity.
- Heavy-Duty Intercooler Pipes: Includes a 3" Hot Side and 3.5" Cold Side pipe to eliminate boost leaks and blown factory boots.
- Superior Sealing: CNC-machined flanges with double O-rings and stainless T-bolt clamps ensure a leak-free fit under high boost.
- Direct Bolt-On: No tuning required! Retains all factory sensors and connection points for a seamless install.
- Custom Look: Finished in a durable powder coat to dress up your engine bay while protecting against corrosion.
- Made in the USA: Fabricated from high-strength 14-gauge aluminum for ultimate durability.
Includes
- 4 in. Aluminum Intake Pipe
- 4 in. Intake Horn with PCV Port and Surge Ring
- Air box enclosure with dry filter assembly and Outerwears pre-filter cover
- Installation hardware, 4 in. silicone hump boot and stainless t-bolt clamps
- 3 in. Hot Side Intercooler Pipe
- 3.5 in. Cold Side Intercooler Pipe
- CNC-machined flange and black anodized billet aluminum adapter with Double O-Rings
- Silicone Boots, Stainless Steel T-Bolt Clamps, and O-Rings
- Intercooler Outlet Clip
Notes
- Installation: Installs with basic hand tools; no modifications to the truck are necessary.
- Savings: This bundle saves you over $60 compared to purchasing the intake and pipe kits individually.
- Emissions: This product cannot ship to the state of California.
- Color: Custom powder coat colors are available—please allow for additional lead time for coating.
Description supplied by Dirty Diesel Customs through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
