About this product
Replace the two weakest links in the charge air path on your 2017-2019 Chevrolet Silverado / GMC Sierra 2500HD/3500HD 6.6L Duramax L5P with the Wehrli Stage 1 High Flow Intake Bundle Kit (Manufacturer Part # WCF100718). Out goes the restricted two-piece 2.5" driver side pipe with its resonator, and the leak-prone plastic and rubber passenger side pipe. In goes a one-piece 3" hot side and a 3.5" cold side in 14 gauge mandrel bent aluminum. Bolt on, no tuning, and SEMA certified emissions compliant.
Why Choose the Wehrli Stage 1 High Flow Intake Bundle Kit?
- SEMA Certified Emissions Compliant – Cert No. SC-WCF01-0176. Not every charge pipe upgrade carries one.
- 2.5" to 3" on the hot side, one piece – the factory pipe is two pieces with a resonator. Wehrli deletes the resonator and the middle boot joint entirely.
- 3.5" cold side with a machined flange – CNC machined with a double O-ring seal, replacing the two-piece plastic and rubber part that splits.
- Clip ring gone at the Y-bridge – the OEM clip ring design is replaced with a high quality silicone boot and stainless T-bolt clamps that hold real boost without weeping.
- Keeps the truck stock-compatible – retains every factory connection point and sensor.
- 14 gauge mandrel bent aluminum – heavy wall with smooth aerodynamic bends, made in the USA.
- Custom powder coat – finished in your choice of Wehrli's colors.
Kit Includes
- 3" driver (hot) side intercooler pipe, one piece, 14 gauge mandrel bent aluminum
- 3.5" passenger (cold) side intercooler pipe with CNC machined double O-ring flange
- Reinforced silicone boots
- Stainless steel T-bolt clamps
- O-rings and intercooler outlet clip
Installation Highlights
Installs with basic hand tools on an otherwise stock truck — no tuning, no other modifications or upgrades necessary.
Fits These Models
2017, 2018 and 2019 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD with the 6.6L Duramax L5P.
Specifications
- Driver (hot) side pipe: 3" diameter, one piece, resonator and middle boot joint deleted
- Passenger (cold) side pipe: 3.5" diameter with CNC machined double O-ring flange
- Construction: 14 ga. mandrel bent aluminum
- Emissions: SEMA Certified Emissions Compliant, Cert No. SC-WCF01-0176
- Shipping weight: 12.0 lbs
- Package dimensions: 36" W x 12" H x 12" L, ships in its own box
- Finish: custom powder coat, color selected above
- Made in the USA
Key Features at a Glance
- SEMA emissions certified - Cert No. SC-WCF01-0176.
- 3" one-piece hot side - OEM resonator and middle joint deleted.
- 3.5" cold side, machined flange - double O-ring seal replaces plastic and rubber.
- Both pipes in one kit - complete Stage 1 charge path.
- 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, Candy Teal, Illusion Purple, Bengal Red, 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.
- Stage 2 for this truck adds the 4" intake and air box on top of these pipes.
FASS SKU: WCFWCF100718
Manufacturer Part #: WCF100718
Questions? We’re Here to Help.
Have questions about upgrades for your 6.6L Duramax L5P? 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.
