Wehrli Duramax LBZ Stage 3 High Flow Bundle Kit

Fits 2006–2007 Chevrolet Silverado 2500HD and 3500HD with 6.6L Duramax LBZ engine

Part #: WCF100503-BR

Overview

The Wehrli Stage 3 High Flow Bundle Kit is a performance upgrade designed specifically for Chevrolet Silverado trucks equipped with the 6.6L Duramax LBZ engine from 2006 to 2007. This comprehensive kit significantly enhances airflow to your turbocharger, resulting in improved horsepower and torque, while also helping to lower intake temperatures by drawing in cooler air through the inner fender. Crafted from durable 14-gauge aluminum, the kit features large diameter 4-inch piping with smooth aerodynamic bends to optimize airflow and reduce turbulence. The inclusion of a 4.8-inch turbo intake horn, the largest on the market, provides a 20% increase in airflow over stock, supporting more aggressive engine response and turbo sound during acceleration. This upgrade is ideal for enthusiasts seeking to maximize their truck’s performance potential with a reliable, high-quality intake system that combines functional airflow improvements with a bold, aggressive engine sound.

Key Features

This high-flow bundle offers a combination of materials and design features aimed at enhancing your vehicle’s intake system:

• All aluminum construction with 14-gauge thickness for durability and heat resistance
• Large 4-inch diameter piping to maximize airflow volume and velocity
• Smooth, aerodynamic bends to minimize airflow restriction and turbulence
• Largest turbo intake horn on the market, boosting airflow by 20% over stock
• Designed to support increased horsepower and torque output
• Draws cold air through the inner fender for cooler intake temperatures
• Engineered for easy installation and long-lasting performance

Construction & Design

The kit’s all-aluminum construction ensures strength, lightweight handling, and excellent heat dissipation. The large diameter piping and smooth bends are carefully designed to optimize airflow efficiency, reducing pressure drops and enhancing throttle response. The robust materials and precise manufacturing contribute to a reliable upgrade that withstands demanding driving conditions.

Driving Feel & Feedback

With improved airflow and intake efficiency, your truck will exhibit more responsive acceleration and a more aggressive turbo sound during throttle application. The increased intake volume supports better engine breathing, translating into a noticeable enhancement in overall driving engagement and power delivery.

Installation & Fitment

This bundle kit is designed for straightforward installation on compatible Chevrolet Silverado models with the LBZ engine. Proper fitment is achieved through precise engineering and included hardware, ensuring a secure and effective upgrade without extensive modifications.

What’s Included

The package includes all necessary components for a complete upgrade, such as the large diameter piping, turbo intake horn, clamps, and mounting hardware, providing everything needed for a seamless installation.

Ideal For

Perfect for diesel truck enthusiasts and performance-minded drivers looking to boost their Silverado’s power, response, and sound with a durable, high-flow intake system that supports aggressive driving and towing demands.