2020-2026 L5P Duramax 4" Intake Resonator Pipe

Lose the plastic resonator box

This 4 in. pipe takes the place of the plastic turbo resonator box between the factory airbox and the VGT turbo on 2020-2026 L5P trucks.

Wehrli says it cuts restriction so the turbo gets more air, and dropping the silencers gives a more aggressive turbo and engine sound. The factory air filter panel and box stay, so service is unchanged.

It bolts onto a stock truck with basic hand tools, with no tuning or other changes.

Who it's for

2020-2026 L5P owners who want a cleaner engine bay and a bit more turbo sound while keeping the factory airbox.

Key specs (per Wehrli)

What's included

• 4 in. intake pipe (replaces the resonator box)
• Silicone boots (one hump, one straight)
• Clamps; powder-coated finish

Fitment notes

• Fits 2020-2026 Chevrolet Silverado / GMC Sierra 2500 HD and 3500 HD with the 6.6L L5P Duramax.
• Only fits with the factory air filter box; it will not work with aftermarket intakes such as S&B, Banks or aFe.
• Replaces GM part numbers 84841229, 84841225 and 84262962.
• California: Wehrli does not ship this part to California.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.