2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Intercooler Pipes & Intake Accessories

Upgrading the factory intercooler equipped on your 2004.5-2005 GM 6.6L Duramax is a great way to promote better engine efficiency and long-lasting performance without a ton of hassles. Here at Alligator Performance, we carry a ton of intercooler tubing upgrades that help deliver a major improvement in both airflow and heat dissipation, helping unlock some of the potential hidden under the hood of your Sierra/Silverado 2500/3500. New Intercooler tubes are also great for maintaining safe and consistent operation of your engine when pushing things to the limit, helping to prevent any potential blowouts. Pair your new intercooler tubes with a new Cold Air Intake or some Transmission Upgrades to further set your Sierra/Silverado apart from the rest of the pack. GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.