GMC 2500 Performance Air Intake by Sinister Diesel for the 2004.5–2005 Duramax LLY, finished in Signature Sinister Blue. This direct-fit intake uses precision-bent aluminum tubing and a washable cotton filter to promote smooth, efficient airflow.

Designed, engineered, and fabricated by Sinister Diesel, this kit replaces the factory intake on 2004.5–2005 Chevy/GMC 2500/3500 6.6L LLY trucks. The CNC mandrel-bent aluminum tube keeps airflow smooth, and the Signature Sinister Blue powder coat helps resist corrosion. High-temp silicone couplers and complete hardware ensure a solid fit, while the oversized, reusable cotton filter reduces restriction and ongoing filter costs. Installation is a straightforward drop-in with basic hand tools.

Features

• CNC mandrel-bent aluminum intake tube
• Oversized reusable cotton filter media
• Signature Sinister Blue powder-coated finish
• High-temp silicone couplers and complete mounting hardware
• Smooth airflow to support responsive throttle and turbo spool-up
• Drop-in installation with basic tools

Questions or ready to schedule service? Call our Austin, Texas shop at 512-982-9393 or our Los Angeles, California area shop at 562-981-6800. We offer professional installation and customization services at both locations.

Thinking about 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