304 Stainless Steel DPF-Back Performance Exhaust Kit - Single Exit Black Coated Tip w/ Polished Tube

Features:

• 4-inch mandrel-bent 304 stainless tubing
• DPF-back performance exhaust design
• Improves fuel economy and turbo efficiency
• Reduces exhaust back pressure
• Eliminates restrictive factory muffler
• Retains factory exhaust valve operation
• Uses all factory mounting locations
• Single side-exit black coated tip
• Includes all required installation hardware
• Limited lifetime stainless steel warranty
• Fits 2023-2025 GM 3.0L Duramax

Wake Up The Duramax With A Purpose Built Exhaust Upgrade

If your 3.0L Duramax feels like it is being held back, this PPE DPF-Back Performance Exhaust Kit is designed to let it breathe the way it should. From the first startup, the freer flowing design delivers a deeper, more confident exhaust note without being overbearing on the highway. Additionally, reducing back pressure helps the turbo work more efficiently, which can translate into improved throttle response and better fuel economy during daily driving or long hauls. The system removes the restrictive factory muffler while retaining the factory exhaust valve, so you keep OEM functionality with noticeably improved performance. Built entirely from high grade 304 stainless steel, this exhaust is made to handle harsh weather, road salt, and hard miles without sacrificing appearance. What’s more, the black coated side exit tip adds a clean, aggressive finish that looks right at home on a modern Sierra or Silverado.

Engineered For Efficiency Durability And Factory Level Fitment

This DPF-back exhaust kit is constructed using full 4-inch mandrel bent 304 stainless steel tubing to ensure consistent airflow from the exhaust valve back to the tailpipe. The smoother bends and larger diameter help reduce restriction at the manifolds, supporting quicker turbo response and more efficient exhaust gas flow. Furthermore, the system is designed to eliminate the factory muffler while utilizing all factory hanger locations, maintaining proper clearance and alignment under the truck. PPE includes all required 304 stainless steel clamps and hardware, allowing for a straightforward installation once the factory exhaust is cut as required. The 5.5-inch oval side exit tip features a durable black ceramic coating that resists discoloration and heat cycling. Backed by a limited lifetime warranty on the stainless system, this exhaust is built to deliver long term performance and confidence for 2023-2025 GM 1500 Duramax owners.

Fitment:  2023, 2024, 2025 GM 1500 Sierra/Silverado 3.0L Duramax

Notes:

• This is a DPF-back exhaust system and does not affect emissions equipment.
• Factory exhaust valve is retained for proper OEM functionality.
• Installation requires cutting the factory exhaust system.
• Constructed entirely from 304 stainless steel, not 409 stainless.
• System replaces the factory muffler from valve to tailpipe.
• Designed to reduce back pressure and support turbo efficiency.
• Uses all factory hanger locations for proper fitment.
• Includes all necessary clamps and installation hardware.
• Black ceramic coated tip carries a one-year finish warranty.
• Stainless exhaust components are backed by a limited lifetime warranty.

Install Instructions