Shop Blessed Performance and increase airflow on your 2001-2004 GM 6.6L Duramax LB7 with the HSP LB7 Cold Air Intake. With gains of up to 20HP and 58 lb-ft on average, the HSP Intake System delivers power, efficiency and air flow. The 4" mandrel-bent intake tube provides a free-flowing path for air. The specially designed heat-shielded box draws in cold air from the headlight bezel and fender port. Add in a free-flowing air filter from one of the top manufacturers in the industry, and you'll see why the HSP Cold Air Intake is a perfect option for your LB7. This is a CUSTOM BUILT, MADE TO ORDER PRODUCT (4-6 Week Lead time)