304 Stainless Steel DPF-Back Performance Exhaust Kit - Single Exit w/ Polished Tubes/Polished Tips

Features:

• Fully polished tubing and exhaust tip
• 304 stainless steel resists rust and corrosion
• Mandrel-bent design improves exhaust flow
• Direct bolt-on system with no cutting required
• Uses OEM hanger locations for perfect alignment
• Reduces back pressure for better performance
• Improves throttle response and turbo spool
• Includes stainless steel clamps for secure fit
• 5-inch tip adds bold finishing touch
• Interlocking bellows handle heat and vibration
• Helps increase fuel economy under load

Give Your Duramax The Performance Exhaust It Craves

There’s nothing satisfying about a stock exhaust that chokes the sound and performance of your 3.0L Duramax. The PPE DPF-Back Performance Exhaust Kit gives your 2020-2022 Silverado or Sierra the aggressive tone and added efficiency it was missing from the factory. This system brings out a deeper, cleaner exhaust note without setting off any warning lights or affecting emissions equipment. The polished tubing and matching tip give your truck a sleek, high-end look that stands out, especially under load or when pulling into the driveway. With less restriction behind the turbo, you’ll feel more responsive acceleration and smoother shifting under throttle. Whether you're towing, daily driving, or just want a better sound and look, this exhaust delivers without overcomplicating things. It bolts right into place using factory hanger locations, so you can install it confidently without any cutting or welding.

Engineered To Flow Better And Last Longer

This PPE system is more than a cosmetic upgrade, it’s built for real-world performance and long-term durability. Constructed entirely from 304 stainless steel, the mandrel-bent 4-inch tubing maintains consistent internal diameter through every curve, improving exhaust velocity and reducing back pressure. That means cooler exhaust temps, quicker turbo response, and better overall efficiency. The interlocking stainless steel bellows help the system flex with heat and vibration, preventing cracks and leaks over time. Stainless clamps are included for a tight, corrosion-resistant seal, ensuring this system stays secure and quiet after installation. The 5-inch polished tip not only looks sharp but also complements the fully polished tubing for a finished, custom appearance. Since this is a DPF-back kit, it retains all factory emissions components and doesn’t require tuning or modifications to the ECU. PPE backs it with a limited lifetime warranty, giving you confidence that this system is built to handle whatever you throw at it.

Fitment: 2020, 2021, 2022 GM Sierra/Silverado 1500 3.0L Duramax

Notes:

• Designed for 2020-2022 GM 1500 3.0L Duramax models only
• Replaces exhaust system from the DPF to the tailpipe
• Keeps factory emissions equipment fully intact and functional
• Does not require tuning or ECU programming
• Polished tubing and tip provide a clean custom look
• Emissions compliant since it retains the factory DPF
• Black ceramic-coated tip option carries a 1-year warranty
• Limited lifetime warranty applies to stainless steel components
• Not legal for sale or use in California or CARB states
• System installs using factory hanger points with no modifications
• Professional installation recommended for best results

Install Instructions