High Flow Bundle Kit Stage 3 for 2006-2007 Duramax LBZ Flat Black

The Wehrli 100503-FB Stage 3 High Flow Intake Bundle Kit is designed for 2006-2007 LBZ 6.6L Duramax equipped Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks. It combines Wehrli's Stage 2 High Flow Bundle with a 3" Stainless Steel Down Pipe to improve air and exhaust flow, resulting in increased efficiency, throttle response, and turbo spool up. The kit replaces restrictive factory components with durable aluminum and stainless steel parts, including a 4" intake pipe, 4.8" intake horn, air box enclosure with dry filter, 3" hot side intercooler pipe, 3.5" cold side intercooler pipe, and a 3" two-piece Y-bridge. It features CNC machined flanges, double o-ring seals, silicone boots, and stainless steel t-bolt clamps for superior performance and reliability. No tuning is required, and the kit is made in the USA.