GMC Sierra 3500 Performance Air Intake - Wehrli - Stage 2 - Candy Red - `20-`24 is a high-flow, bolt-on intake designed for 2020-2024 Duramax L5P trucks. It replaces restrictive factory plastic components with a fabricated aluminum air box and 4" piping to improve airflow to the turbo.

This Wehrli Stage 2 kit uses large-diameter 4" smooth-bend aluminum piping and an intake horn over an inch larger than OEM to reduce restriction ahead of the turbo. The design draws cold air through the hood ram air duct and inner fender to help lower intake temperatures, sharpen throttle response, and support improved engine and turbo sound during acceleration. The assembly is finished in Wehrli’s custom Candy Red powder coat and includes a dry filter, silicone boot, and stainless steel T-bolt clamps for durable, secure connections. No tuning is required for stock trucks; the kit is made in the USA and replaces multiple GM part numbers for a direct-fit installation.

Features

• Fabricated 10-gauge aluminum air box and lid
• 4" diameter intake pipe and oversized intake horn
• Dry air filter with Outerwears pre-filter cover
• High-quality silicone boot and stainless steel T-bolt clamps
• Custom Candy Red powder coat; made in the USA

Note: Failure to disable the air filter monitor system will trigger a service message requiring dealer reset; the air filter life display will show as disabled when settings are correct. This Stage 2 kit is compatible with stock 2020-2024 Duramax L5P trucks and requires no additional modifications for fitment.

This intake is a solid choice for enthusiasts who want durable construction, increased airflow, and an aggressive intake tone without added tuning. If you have questions or want help confirming fitment, call us directly or visit one of our shops — we offer installation and customization at both locations. 512-982-9393 (TX) and 562-981-6800 (CA).

If you're considering purchasing multiple items, contact us for shipping discounts. We install on premises at both our Austin, Texas and Los Angeles, California area locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov