S&B Cold Air Intake | GM/Duramax LML 6.6L | 2011-2016

The S&B Cold Air Intake for the 2011-2016 GM 6.6L LML Duramax pushes 29.1% more air through your intake than the factory airbox, with a 99.45% efficiency rating and zero check engine light issues. If you're running a performance tune on the LML and want your intake keeping up with the calibration, this is the bolt-on answer.

The factory airbox was built around the LML's heavy emissions load, not around performance driving or heavy towing. More intake restriction means less air for combustion and a turbo working harder for the same output. S&B's intake fixes that by replacing the OEM airbox with a sealed, heat-shielded system that flows 29.1% more air while holding a 99.45% efficiency rating.

The enclosed airbox shields incoming air from engine heat, and it keeps the factory MAF sensor in its stock location, so your ECM stays in the clear and no tune is required just for the intake. You get your choice of oiled or dry filter for different driving environments, multiple airflow configurations, and a bolt-on fit with all hardware included. High-quality materials filter out dirt, dust, and contaminants while keeping airflow up, so you're not trading engine life for performance.

On the road it means tighter spool, less lag between pedal and power, and noticeably better throttle response on the LML. It fits the 2011 through 2016 Silverado and Sierra with the 6.6L LML Duramax across all pickup trims, cab styles, and box lengths, but not Cab & Chassis trucks. Standard shipping is 4-8 days, express 2-3, with possible added freight to Alaska, Hawaii, and some Canadian locations. There's a 30-day return policy on unused kits.