Wehrli Stage 3 High Flow Intake Bundle Kit - Bengal Red for 2020-2024 Chevrolet 6.6L Duramax L5P replaces restrictive factory air and exhaust components with a durable, high-flow assembly designed for improved intake and turbo efficiency. This complete bundle combines air intake, intercooler pipes, and a ceramic-coated downpipe into a single bolt-on package.

The kit uses 14-gauge aluminum 4" intake piping with smooth mandrel bends, a larger 4" intake horn, and a dry filter with an Outerwears hydrophobic pre-filter cover. Driver and passenger intercooler pipes are upgraded to heavy-duty 3" (hot side) and 3.5" (cold side) one-piece tubes to reduce leak points. The 3.5" downpipe is black ceramic coated and heat wrapped, retains factory sensor bungs and flanges, and connects to OEM exhaust components. High-quality reinforced silicone boots, stainless t-bolt clamps, CNC-machined flange with double O-ring sealing, and included hardware improve durability and boost sealing. Finished in Wehrli custom Bengal Red powder coat, this kit is made in the USA and installs without required tuning for stock vehicles.

Features

• 4" aluminum intake pipe, intake horn, and dry filter with pre-filter cover
• 3" hot-side and 3.5" cold-side one-piece intercooler pipes, 14 ga. aluminum
• 3.5" ceramic-coated, heat-wrapped downpipe with OEM sensor bungs
• CNC-machined flange with double O-ring, reinforced silicone boots, stainless t-bolt clamps
• Removable air box lid for inspection and maintenance; retains factory connections
• Custom Bengal Red powder coat; made in the USA; bolt-on installation

If you have questions or want help choosing the right setup, call us directly — we’re happy to walk you through fitment and options. We offer installation and customization services at our Austin, TX and Los Angeles, CA area locations: 512-982-9393 (TX), 562-981-6800 (CA). If you’re considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

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