3.5-inch 304 Stainless Steel Down Pipe

Features:

• Full 304 stainless steel.
• Smooth, round construction.
• Replaces crushed oval-shaped stock down pipe.
• Includes a woven titanium sleeve.

Designed for Longevity & Improved Exhaust Flow

Upgrade your vehicle's performance with the PPE Stainless Steel Down Pipe. Say goodbye to your crushed oval-shaped stock down pipe and replace it with our smooth, round, and durable full 304 stainless steel down pipe. Designed for longevity and improved exhaust flow, this down pipe enhances your vehicle's efficiency and power. Additionally, it includes a woven titanium sleeve that effectively reduces engine bay temperatures, ensuring optimal performance under any condition. Choose PPE for a reliable, high-quality upgrade that makes a difference.

Fits: 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2017–2025 Silverado and Sierra 6.6L Duramax
• Made from full 304 stainless steel
• Smooth round design replaces restrictive stock pipe
• Includes woven titanium sleeve for heat protection
• Lowers exhaust temps and improves turbo response
• Welded flanges provide a strong leak-free connection
• Keeps factory sensor port for OEM compatibility
• Direct bolt-on install with no cutting required
• Works with stock or aftermarket up-pipes
• Built for long-term durability and performance