Feature:1. The intake will not bend with boost or vacuum.2. The smooth inner wall reduces air flow resistance and improves engine performance.3. High level of accuracy and sensitivity, enhance safety of your vehicle.4. Simple installation, no need complicated tools, convenient for using.5. These will fit for cathedral style LS1 for LS2 LS6 4.8/5.3/5.7/6.0 headsSpecification:Item Type: Intake Manifold KitColor: BlackLS1 for LS2 LS6 EFI 0 throttle openingThrottle body is drive by cableThrottle Body Opening: Approx. 102mm/4inManifold Height: Approx. 9inMaterial: 3mm T6061 Aluminum Sheet Vacuum Ports: 3Finish: PolishedFitment:These will fit cathedral style LS1 for LS2 LS6 4.8/5.3/5.7/6.0 headsFit for small block v8 gen. Iii/iv (ls-based)293 ci - 4.8 L (LR4)325 ci - 5.3 L (L33, L59, LM4, LM7)346 ci - 5.7 L (LS1, LS6)364 ci - 6.0 L (LQ4, LQ9, LS2)Original application of LS1 / LS2 / LS6 engine:2001-2004 Fit for Z062004-2005 Fit for CTS V series2005-2006 Fit for SSR2006-2009 Fit for Trailblazers SS2006-2007 Fit for Medium Car Series2005-2006 Fit for GTO2008-2009 Fit for Saab 9-7X Aero.Package List:1 x Intake Manifold Kit