




Sinister Diesel Cold Air Intake for 2013–2016 Chevy/GMC 6.6L Duramax LML
Refresh your Duramax LML intake with CNC mandrel-bent aluminum tubing, an oversized reusable cotton-media filter and Signature Sinister Blue styling. This Sinister Diesel cold air intake is listed for 2013–2016 Chevy/GMC 2500 and 3500 trucks equipped with the 6.6L Duramax LML diesel engine.
From daily driving to preparing for your next towing trip, the serviceable filter and blue powder-coated tubing bring practical maintenance and a coordinated look to your engine compartment.
Key features
- CNC mandrel-bent aluminum tubing: Designed for smooth airflow.
- Oversized reusable cotton-media filter: Clean and service according to the manufacturer’s instructions.
- Signature Sinister Blue finish: Polished and powder-coated tubing for corrosion protection and under-hood style.
- Silicone couplers: Supplied for the intake connections.
- Installation hardware included: Sinister Diesel describes installation as drop-in using basic hand tools.
Sinister Diesel describes the intake as improving throttle response and turbo spool-up. Actual results depend on vehicle condition, modifications and operating conditions; no specific horsepower or fuel-economy gains are stated.
Included components
- CNC mandrel-bent aluminum intake tube
- Reusable cotton-media air filter
- Silicone couplers
- Installation hardware
Fitment
Listed application: 2013–2016 Chevy/GMC 2500 and 3500 with the 6.6L Duramax LML diesel engine. Confirm your model year, engine designation and compatibility with existing modifications before ordering.
Filter care and accessories
Follow Sinister Diesel’s cleaning and servicing instructions for the reusable filter. Contact us to confirm compatible pre-filter availability; a pre-filter is not listed among the supplied components.
Part number: SD-CAI-LML-13

