2001-2024 GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes ppepower

2017-2025 GM 6.6L Duramax High-Flow 304 Stainless Steel Down Pipe

Name: 2017-2025 GM 6.6L Duramax High-Flow 304 Stainless Steel Down Pipe
Brand: Pacific Performance Engineering
SKU: 117000800
Price: 318.0 CAD
Availability: InStock

$318.00 In Stock Temporarily Out of Stock

PART NUMBER: 117000800 GTIN: 840171200218

Features

304 Stainless steel construction for durability and corrosion resistance
Lower EGT, better turbo efficiency and response
TIG welded flanges for leak-free, robust connections
Smooth transitions and free-flowing design
Woven titanium heat sleeve
Compatible with factory or PPE Up-Pipes
Retains factory sensor port (M14-1.5)

FREE SHIPPING FOR ORDERS OVER $100

3 YEAR LIMITED WARRANTY

30-DAY RETURNS

Pending

Description
Compatible Vehicles
Downloads

GM 6.6L Duramax High-Flow 304 Stainless Steel Down Pipe

Upgrade your L5P Duramax with the PPE Free-Flow Downpipe and eliminate the rusted, restrictive factory design. The PPE Down Pipe highlights unrestricted 3.5-inch diameter flow path, fully machined and TIG welded upper flange with factory-style V-band, and 304 stainless steel piping. It ensures smooth transitions for unobstructed exhaust flow.

To further enhance performance, it comes with a woven titanium sleeve that effectively insulates heat, protecting the engine bay.

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2025 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

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2024 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2024 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2024 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

2023 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)

2023 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2023 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2023 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

2022 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)

2022 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2022 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2022 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

2021 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)

2021 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2021 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2021 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

2020 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)

2020 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2020 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2020 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

2019 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)

2019 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2019 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2019 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

2018 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)

2018 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2018 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2018 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

2017 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)

2017 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)

2017 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)

2017 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)

Installation Guide:

17-24 Duramax Three-Inch Down Pipe

(Change vehicle)

Quality manufacturing

The cast and machined flanges are of quality I wouldn't want to hide under a clamp. They blend well with the pipe and would appear to have good flow characteristics. Everything fit right up as it should. I did end up needing to add a third hose clamp to the middle of the wrap to keep it from sliding down the pipe.