GMC Sierra Performance Air Intake - Wehrli - 4in. - Deore Gold - 11–16. A high-flow, fabricated aluminum intake and air box that replaces restrictive factory components on 2011–2016 GM Duramax LML trucks.

This Wehrli Custom Fab 4" system uses large-diameter, smooth-bend aluminum piping with a dry filter inside a boxed enclosure that draws cool air from the inner fender for improved airflow. Expect quicker throttle response, more pronounced turbo sound under acceleration, and reduced intake temperatures. Built in the USA, it features a removable lid for easy filter inspection and an Outerwears hydrophobic pre-filter to help keep your MAF, turbo, and intake tract clean. High-quality silicone boot, stainless T-bolt clamps, and complete hardware provide a straightforward, no-tune, bolt-on install with basic hand tools. Durable Deore Gold powder coat finish.

Features

• 4" aluminum intake pipe with smooth aerodynamic bends
• Air box with lid; pulls cold air through inner fender
• Dry air filter with Outerwears pre-filter cover
• Silicone boot and stainless T-bolt clamps
• No tuning required; installs with basic tools
• Made in the USA

Questions or planning a build? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization services at both our Austin, Texas and Los Angeles, California locations.

Buying 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