About this product
The factory cold side pipe on a 2011-2016 Chevrolet Silverado / GMC Sierra 2500HD/3500HD 6.6L Duramax LML is a two-piece plastic assembly, and it is where boost leaks start. The Wehrli 3.5" High Flow Passenger (Cold) Side Intercooler Pipe Kit (Manufacturer Part # WCF100682) replaces it with a one-piece 14 gauge aluminum pipe — 23% more airflow than stock.
Why Choose the Wehrli Cold Side Intercooler Pipe Kit?
- 23% more airflow than stock – Wehrli's measured figure, from going one-piece and upsizing to 3.5".
- One piece instead of two – the factory joint in the middle of a plastic pipe is a failure waiting to happen. This deletes it.
- Clip ring gone – the OEM clip ring design is replaced with a high quality silicone boot and stainless steel T-bolt clamps that seal properly and hold higher boost.
- Threaded bung for your IAT sensor – the factory intake temperature sensor reinstalls into the new pipe. Nothing to relocate or delete.
- Works with the OEM Y-bridge and crossover – nothing else needs replacing.
- 14 gauge aluminum – heavy wall construction, made in the USA.
- No tuning required – fits a stock truck, installs with basic hand tools.
Kit Includes
- 3.5" cold side intercooler pipe, one piece, 14 gauge aluminum
- Upgraded silicone boots
- Stainless steel T-bolt clamps
- Threaded bung for OEM intake temperature sensor
Fits These Models
2011, 2012, 2013, 2014, 2015 and 2016 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD with the 6.6L Duramax LML.
Specifications
- Pipe: 3.5" diameter, one piece, 14 ga. aluminum
- Airflow: 23% gain over stock, per Wehrli
- Compatible with the OEM Y-bridge and crossover pipe
- Shipping weight: 8.0 lbs
- Package dimensions: 12" W x 12" H x 32" L, ships in its own box
- Finish: custom powder coat, color selected above
- Made in the USA
Key Features at a Glance
- 23% more airflow than stock - measured by Wehrli.
- One-piece aluminum - replaces the two-piece plastic OEM pipe.
- Clip ring deleted - silicone boot and T-bolt clamps instead.
- IAT sensor bung built in - factory sensor reinstalls.
- No tuning required - bolt on to a stock truck.
- Custom powder coat finish - pick your color above.
Notes
- Lead time varies by color. WCFab Red, WCFab Grey, Gloss White and Gloss Black are stocked and ship in 3-5 business days. All other colors are made to order on a 10-15 business day lead time.
- The matching driver (hot) side 3" pipe is a separate part — call if you want both.
FASS SKU: WCFWCF100682
Manufacturer Part #: WCF100682
Questions? We’re Here to Help.
Have questions about upgrades for your 6.6L Duramax LML? Contact FASS Motorsports and we’ll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
Description supplied by FASS Motorsports through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.
