2011 Duramax Boost Tube Upgrade Kit (25959)

Banks' huge 3.5-inch boost tube system delivers up to 105% greater flow area than the stock Duramax boost tubes. Produced from mandrel-bent aluminized steel with spring-loaded constant-tension clamps and heavy-duty silicone couplers, this kit improves airflow, lowers EGTs and lets the turbo spool up faster. Designed to work with the stock elbow or intercooler, or combine with a Banks Monster-Ram for even more power.

Part Number: 25959

Fits: 2011 Chevrolet/GMC 2500/3500 6.6L Duramax LML

• Complete left and right side boost tubes with silicone couplers
• 105% greater flow area than stock (3.5-inch vs 2.5/3.38-inch)
• Mandrel-bent aluminized steel construction
• Spring-loaded constant tension clamps
• Lower EGTs and greater cooling capacity

Note: Not compatible with 2011 Duramax equipped with Active Brake Control/Trail Brake.