3-Inch Driver-Side Hot-Side Boost Tube Kit

The Banks Power Boost Tube Upgrade Kit enhances the performance of 2004.5-2009 Chevy/GMC 2500/3500 6.6L Duramax trucks. This driver-side, hot-side tube boasts a 3-inch diameter and mandrel-bent aluminized steel construction, providing a significant 60% increase in flow area compared to the stock 2.375-inch tubing. This larger diameter and smoother bends allow for quicker turbo spool, improved boost pressure retention, and ultimately, more horsepower. The kit includes 4- and 5-ply heavy-duty silicone couplers and spring-loaded constant tension clamps to ensure a secure and leak-free connection, even under high-boost conditions. The red powder-coated finish is applied stopping before the end of the tube to provide a better grip for the couplers. A crucial fitment note specifies that this kit does NOT fit the 2004 LB7 engine; it is exclusively for 2004.5 and later models. The installation is estimated to take approximately 1.5 hours and is described as plug-and-play.