Fully CNC Machined Turbo Resonator Delete

Features:

• CNC machined from 6061-T6 aluminum
• Eliminates restrictive factory plastic resonator
• Improves turbo efficiency and throttle response
• Unrestricted airflow path to intercooler
• Reliable Viton O-ring seal included
• Steel retainer clip for secure fit
• Adds some cooling capability to system
• Available in raw or black-anodized finish
• Easy, bolt-on installation

Let Your 3.0L Duramax Actually Breathe

The factory resonator on your 3.0L Duramax was designed with one priority in mind, and it wasn't airflow. That 2-inch internal diameter packed with gill openings does a decent job muting turbo sound, but it comes at the cost of restricting the exact airflow your turbo needs to work efficiently. The PPE 115020400 Turbo Resonator Delete removes that restriction entirely, creating an unobstructed path for air flowing into your intercooler. Once it's installed, you'll notice the difference in turbo efficiency and throttle response, since the turbo isn't fighting through a muffled, narrowed passage just to feed your engine. Machined from a single piece of 6061 billet aluminum, this resonator delete is available in both raw and black-anodized finishes, so it looks as good as it performs. It even adds a small amount of extra cooling capacity to the system in the process. For a straightforward bolt-on upgrade that improves how your 3.0L actually responds to throttle input, this is an easy call.

Precision Billet Construction Built For A Clean, Reliable Fit

The PPE 115020400 is a fully CNC machined turbo resonator delete engineered specifically for 2020-2026 GM trucks equipped with the 3.0L Duramax engine. Machined from a single-piece 6061-T6 billet aluminum, this resonator delete replaces the restrictive factory plastic piece, which uses a 2-inch internal diameter with gill openings that limit airflow while muting turbo sound. Removing that restriction opens up a clear, unobstructed path for air flowing into the intercooler, directly improving turbo efficiency and throttle response. The part includes a high-quality Viton O-ring seal along with a steel retainer clip, both engineered to deliver a hassle-free, OEM-like fitment during installation. Installation is a straightforward bolt-on process, requiring no cutting or permanent modification to complete. This part directly replaces GM OEM part numbers 40009338, 55508581, and 55513244. Available in either a raw or black-anodized finish, it's built to hold up to long-term use while adding a clean, finished look under the hood.

Fitment: 2020, 2021, 2022, 2023, 2024, 2025, 2026 GM 3.0L Duramax

Notes:

• Replaces GM OEM part numbers 40009338, 55508581, and 55513244
• Bolt-on installation, no cutting or permanent modification required
• Includes Viton O-ring seal and steel retainer clip for proper fitment
• Available in raw or black-anodized finish
• Removing the factory resonator will increase turbo sound compared to stock

Install Instructions