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Increase your airflow and protect your engine with the all new redesigned SB Duramax LMM Cold Air Intake Kit. SB designs tests and manufactures all their intake systems for dramatically more airflow from a quality diesel performance intake every time. Their state-of-the-art engineering production processes insure you get an intake that will perform as advertised and install easily in less than 30 minutes with no drilling or cutting. This high quality filter gives noticeable performance gains without having to sacrifice engine protection. This SB intake increases airflow by 53.06% over your stock intake system and boasts a 99.26% filtration efficiency rate. That means the good air gets in and the dirt stays out. SB Filters puts all their cold air intake kits through rigorous ISO 5011 tests to ensure a quality finished product. This cold air intake is CARB California Air Resources Board Exempt. The exemption ID is D-590-15 meaning this intake is street legal in California as well as all other states.