S&B Chev/GMC Silverado/Sierra 07-08 V8-6.6L LMM Duramax

To achieve more airflow they use deeper and more pleats per filter. S&B Filters are manufactured using eight layers of the highest quality cotton gauze. All of this adds up to more surface area per filter, which means more airflow to the intake of the engine and excellent protection. S&B Filters has developed a manufacturing process that yields filters with almost no bleed creating a greater open surface area that maximizes airflow to the engine. Their experience results in air filters that simply perform at a higher level! S&B Air Filters are a washable/reusable air filter like the K&N filter. The difference is in the pleat design. S&B uses bigger, wider, and deeper pleats then the other filter companies out there. This resulting in increased horsepower and better gas mileage.