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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down PipeReplace the restrictive crushed factory down pipe on your 2017 2025 L5P Duramax with this 3. 5" Down Pipe for improved exhaust flow. Connects to the DOC outlet flange behind the OEM turbo and mates with OEM exhaust system front pipe with the 4 bolt style flange connection. Black Ceramic Coated and Heat wrapped. Down Pipe includes bungs for sensors and NO tuning required to use this down pipe. WCFab piping kits and emissions compliant tuning
Replace the restrictive crushed factory down pipe on your 2017-2025 L5P Duramax with this 3.5" Down Pipe for improved exhaust flow. Connects to the DOC outlet flange behind the OEM turbo and mates with OEM exhaust system front pipe with the 4 bolt style flange connection. Black Ceramic Coated and Heat wrapped. Down Pipe includes bungs for sensors and NO tuning required to use this down pipe. WCFab piping kits and emissions compliant tuning recommended for optimum performance gains.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2025 | Chevrolet | Silverado 2500 HD | Custom |
| 2017-2025 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2025 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2017-2025 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2025 | GMC | Sierra 2500 HD | AT4 |
| 2024-2025 | GMC | Sierra 2500 HD | AT4X |
| 2017-2021 | GMC | Sierra 2500 HD | Base |
| 2017-2025 | GMC | Sierra 2500 HD | Denali |
| 2024-2025 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 2500 HD | Pro |
| 2017-2025 | GMC | Sierra 2500 HD | SLE |
| 2017-2025 | GMC | Sierra 2500 HD | SLT |
| 2020-2025 | GMC | Sierra 3500 HD | AT4 |
| 2017-2021 | GMC | Sierra 3500 HD | Base |
| 2017-2025 | GMC | Sierra 3500 HD | Denali |
| 2024-2025 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 3500 HD | Pro |
| 2017-2025 | GMC | Sierra 3500 HD | SLE |
| 2017-2025 | GMC | Sierra 3500 HD | SLT |
Shipping Notes
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Exchange/Return Notes
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Good condition
Format: Paperback
As described
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Reviewed in the United States on January 5, 2025
★★★★★ 4
Book is fine, online access…not so much
Format: Paperback
The online version leaves a lot to be desired.
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Reviewed in the United States on March 20, 2024
★★★★★ 5
brand new
Format: Paperback
brand new book no issues
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Reviewed in the United States on December 11, 2024
★★★★★ 1
Not something to read for pleasure...
Format: Paperback
Blech. I hated it. Buy only if your professor makes you.
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Reviewed in the United States on December 31, 2025
★★★★★ 2
The book is so not fun to read
Format: Paperback
Nothing with the seller, it's just the book that I don't like. Black and white, full of info and boring
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Reviewed in the United States on August 5, 2023
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