Description

SKU #DDP-467-436-447 DDP L5P Boost Tube & Turbo Down Pipe & Turbo Horn Upgrade Kit Increases throttle response and reduces turbo lag Polished (Set) FOR 2020-2024 CHEVY/GMC 2500/3500 6.6L DURAMAX, L5P DDP’S massive 3.5in boost tubes are the largest charge air cooler pipes on the market, flowing 680 CFM and 87% more air than stock! Smooth mandrel-bent tubes deliver more air to your engine while reducing boost pressure loss resulting in quicker turbo spool and more power. Specifications DDP’S Boost Tubes are the largest charge air cooler pipes in the industry measuring in at a full 3.5 inches. Every other competitive product on the market tops out at 3.0 inches, and your factory pipes are only 2.5 inches with crushed bent corners and flimsy plastic components. By contrast, DDP’s Boost Tubes are made of high-quality stainless steel for maximum strength and durability. With DDP’s Boost Tubes' smooth bends, your turbo can spool quicker thanks to improved boost pressure retention for maximum horsepower. DDPs all-new 3.5" Turbo Intake Horn was meticulously designed for the 2020-2024 L5P Duramax. In stark contrast to the OEM's smaller, fragile plastic intake horn, our robust 3.5" horn offers a substantial upgrade. The best part? No need for any tuning - it's a direct replacement right out of the box. Step up your truck's performance with our 3.5" Turbo Intake Horn and relish a remarkable transformation in power, torque, and overall engine efficiency. Experience the road with unwavering confidence, knowing you've invested in an exceptional product from a trusted brand. Elevate your 2020-2024 L5P Duramax today and redefine your driving experience! Key Features · Huge increase in size and flow over stock and competitors (3.5" vs 2.5") · Hot Side flows 490 CFM @ 12" vs stock 388 CFM · Cold Side flows 635 CFM @ 12" vs stock 435 CFM · Constant 3.5in diameter tubing for the best flow · Billet venturi couplers maintain boost pressure · Mandrel-bent stainless steel construction · Allow the turbocharger to spool up faster · Spring-loaded constant tension clamps · Improves airflow by over 26% and 45% · 5-ply heavy-duty silicone couplers · Bung for a temperature probe · Black Powder Coated Finish · No tuning required for installation · Will fit with OEM or any aftermarket intake · Will fit on stock truck, no modifications needed The DDP Duramax downpipe is built from 3" mandrel bent 304 thick wall stainless steel . A fiberglass based heat wrap is also used to provide further insulation from the passenger compartment and firewall due to the closer proximity of the larger, higher flowing pipe. 3" Stainless Steel Construction Thermal Coated & Heat Wrapped Increased Performance & Efficiency Improved Throttle Response Reduced EGT's