CARB Restricted: This product cannot be shipped to California or other CARB-regulated states.

This special-order item requires extra processing time; we’ll email you the ETA after your order, or you can use the contact form with your shipping address and item name to request it.

Photo - Primary
User 2
User 1
User 1
User 1
Logo Image

Wehrli

Wehrli 2020-2024 Chevrolet 6.6L L5P Duramax 4in Intake Pipe (Use w/OEM Air Box) - Gloss Black

$227.95 USD
$227.95 USD
$235.00
Sold Out

Details

WCFab's 4" Intake Resonator Pipe for the Factory (VGT) Turbo on 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD trucks dresses up your engine bay and removes the ugly stock plastic turbo resonator box. Reduces air restriction allowing more air flow to turbo. Removes silencers for more aggressive turbo and engine sound. Retains OEM air filter panel and filter box for ease of maintenance / serviceability. No tuning required, bolt on! Will fit on stock trucks with no other modifications necessary. Installs easily with basic hand tools. Replaces the following GM Part Numbers: 84841229, 84841225, 84262962.

Installation Instructions

This Part Fits:

Year Make Model Submodel
2021-2025 Chevrolet Silverado 2500 HD Custom
2020-2025 Chevrolet Silverado 2500 HD High Country
2020-2025 Chevrolet Silverado 2500 HD LT
2020-2025 Chevrolet Silverado 2500 HD LTZ
2020-2025 Chevrolet Silverado 2500 HD WT
2024-2025 Chevrolet Silverado 2500 HD ZR2
2020-2025 Chevrolet Silverado 3500 HD High Country
2020-2025 Chevrolet Silverado 3500 HD LT
2020-2025 Chevrolet Silverado 3500 HD LTZ
2020-2025 Chevrolet Silverado 3500 HD WT
2020-2025 GMC Sierra 2500 HD AT4
2024-2025 GMC Sierra 2500 HD AT4X
2020-2021 GMC Sierra 2500 HD Base
2020-2025 GMC Sierra 2500 HD Denali
2024-2025 GMC Sierra 2500 HD Denali Ultimate
2022-2025 GMC Sierra 2500 HD Pro
2020-2025 GMC Sierra 2500 HD SLE
2020-2025 GMC Sierra 2500 HD SLT
2020-2025 GMC Sierra 3500 HD AT4
2020-2021 GMC Sierra 3500 HD Base
2020-2025 GMC Sierra 3500 HD Denali
2024-2025 GMC Sierra 3500 HD Denali Ultimate
2022-2025 GMC Sierra 3500 HD Pro
2020-2025 GMC Sierra 3500 HD SLE
2020-2025 GMC Sierra 3500 HD SLT
Trusted Performance Specialists Since 1996  •  60,000+ Builds Powered  •  Authorized Dealer of 250+ Brands
📧 Contact Us | 🕐 Mon–Fri 9am–6pm PST | ↩ Reply within 1 business day

Join the Insider List

Exclusive deals, new product drops, and fitment guides — direct to your inbox.

FOLLOW US

affirm 0% financing on orders $500+
VISA MC AMEX Shop Pay
SP Engineering  •  424 Turnbull Canyon Rd, City of Industry, CA 91745  •  Est. 1996
© 2026 SP Engineering. All rights reserved.