Specifications
- Brand
- Wehrli
- Part #
- WCF100355-FB
- UPC
- WCF100355-FB

Wehrli 2004.5-05 Chevrolet LLY Duramax Passenger Side 3in Intercooler Pipe - Flat Black
$312.32
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Fits 2004-2005 Chevrolet Silverado 2500 HD. This 3in intercooler pipe from Wehrli improves airflow and replaces weak factory components.
Key Features
- Fits 2004-2005 Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 with the LLY Duramax engine.
- Replaces the stock 2.5-inch intercooler pipe with a 3-inch mandrel-bent aluminum pipe for improved airflow.
- Uses upgraded silicone boots and stainless steel t-bolt clamps to withstand higher boost pressures and prevent leaks.
- Direct bolt-on installation with no tuning or additional modifications required for stock trucks.
- Compatible with the OEM Y-Bridge and crossover pipe.
- Features a durable flat black custom powder coat finish.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
Wehrli Custom Fabrication is known for making well-built parts for diesel trucks. If you're working on your 2004.5-2005 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD with the LLY Duramax engine, this passenger side intercooler pipe is a solid upgrade. It replaces the factory 2.5-inch pipe with a larger, 3-inch mandrel-bent aluminum pipe, which helps the turbocharger move more air between the turbo and the engine.
This pipe is made from 14-gauge aluminum and uses improved silicone boots with stainless steel t-bolt clamps. This setup is designed to handle higher boost pressures than the stock components, helping to prevent blown boots and boost leaks that can rob your engine of power. The connection at the intercooler is straight, unlike the angled factory boot, which can improve airflow. It's a direct bolt-on part that works with your stock Y-bridge and doesn't require any tuning or other modifications to install, making it a straightforward way to improve your truck's efficiency and throttle response.
The flat black powder coat finish looks sharp under the hood. This pipe is a great way to eliminate a common weak point in the factory intercooler system, especially if you plan on adding other upgrades down the road.
Specifications
- Brand
- Wehrli
- Manufacturer Part #
- WCF100355-FB
- UPC
- WCF100355-FB
Frequently Asked Questions
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Wehrli 2004.5-05 Chevrolet LLY Duramax Passenger Side 3in Intercooler Pipe - Flat Black
