Fits: 2020-2022 GM L5P w/ 6.6L Duramax
This kit will come with a fully enclosed airbox that protects the filter from dirt and keeps out engine heat. With an efficiency rating of up to 99.26% at the highest-rated CFM and an airflow improvement of up to 51.83%, you can be sure that you are receiving a quality filter that will increase performance while still protecting your truck! This intake features three air inlet points. If you want to customize the amount of air you take in, S&B provides an optional box plug that can seal off one inlet point.
When to use the Box Plug?
Stock intake boxes are a significant contributor to poor airflow which is why S&B designs custom air boxes with secondary and/or enlarged openings. With that said, S&B recognizes the benefits of cooler air, so they have included a plug to seal off the opening if desired. For optimal performance, S&B recommends that the intake be used without the box plug, except in conditions of an extreme heatwave.
Fits: 2020-2022 GM L5P w/ 6.6L Duramax
This kit will come with a fully enclosed airbox that protects the filter from dirt and keeps out engine heat. With an efficiency rating of up to 99.26% at the highest-rated CFM and an airflow improvement of up to 51.83%, you can be sure that you are receiving a quality filter that will increase performance while still protecting your truck! This intake features three air inlet points. If you want to customize the amount of air you take in, S&B provides an optional box plug that can seal off one inlet point.
When to use the Box Plug?
Stock intake boxes are a significant contributor to poor airflow which is why S&B designs custom air boxes with secondary and/or enlarged openings. With that said, S&B recognizes the benefits of cooler air, so they have included a plug to seal off the opening if desired. For optimal performance, S&B recommends that the intake be used without the box plug, except in conditions of an extreme heatwave.