Maximize airflow and boost efficiency on your LML Duramax. This complete hot and cold side boost tube kit from Banks Power features full 3.5″ constant-diameter mandrel-bent steel tubing, replacing the factory charge-air-cooler piping to deliver faster turbo spool, improved boost retention, and higher system durability.

Key Features:

• 3.5″ Constant-Diameter Tubing – Ensures smooth airflow path, significantly larger than the factory tubing.
• Mandrel-Bent Aluminized Steel Construction – Engineered for extreme boost levels and elevated thermal loads.
• Heavy-Duty Silicone Couplers & Spring-Loaded Constant-Tension Clamps – Secure connections designed to handle high-pressure, high-heat conditions.
• Complete Hot + Cold Side Coverage – Includes tubing for both turbo-outlet (hot side) and intercooler-outlet (cold side) paths for the 2013-2016 LML Duramax.

Benefits:

• Flows up to ~105% more than factory tubing, reducing boost pressure losses and increasing system efficiency.
• Improves turbo spool time and throttle response by maintaining higher boost and denser air delivery.
• Replaces weak or restrictive factory plastic/rubber tubing with a robust steel solution built for long-term performance.
• Ideal for performance-tuned trucks, heavy towing duty, or any driver seeking maximum reliability and responsiveness.

Specifications:

• Fits: 2012-2016 Chevy Silverado / GMC Sierra 2500 / 3500 with 6.6L Duramax (LML)
• Tubing Diameter: 3.5″ constant
• Material: Mandrel-Bent Aluminized Steel with Heavy-Duty Silicone Couplers
• Finish: Powder Coat or Protective Coating (as per manufacturer standard)
• Installation Time: Approx. 4 hours (typical) depending on setup
• SKU: 25993

This upgrade from Banks Power is engineered to push the airflow path of your 6.6L Duramax into high-performance territory. With full-diameter steel tubing, you’ll improve spool-up times, reduce EGTs under load, and secure a boost path built to last. If your truck is tuned, towing heavy or just craving better on-road performance, this boost tube kit is a smart move.

Note: Verify your exact vehicle model, year, engine (6.6L LML) and factory piping before purchase. This kit is designed to integrate with stock intercooler inlet/outlet size and locations.