GMC Sierra 3500 Intercooler Pipe - Driver Side - Wehrli - 3" High Flow - Illusion Blueberry - '17-'19. A direct-fit hot-side upgrade for L5P 6.6L Duramax trucks that replaces the restrictive factory assembly.

Built by Wehrli Custom Fabrication, this one-piece 3" pipe replaces the factory two-piece 2.5" setup for improved airflow and reliability. It includes upgraded silicone boots that handle higher pressure and temperature than stock to help prevent blown boots, along with stainless steel T-bolt clamps. Finished in durable Illusion Blueberry powder coat. Installs on a stock truck with no tuning required and replaces GM part number 87839947.

Features

• Fits 2017–2019 L5P 6.6L Duramax (Silverado/Sierra 2500/3500 HD), driver/hot side
• One-piece 3" high-flow tube replaces two-piece 2.5" factory pipe
• High-temp, high-pressure silicone boots and stainless T-bolt clamps included
• Durable Illusion Blueberry powder coat finish
• Direct bolt-on; no tuning or additional mods required
• Replaces GM PN 87839947

Questions or need guidance for your build? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization at both locations.

Considering 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