(In Stock) Speed Engineering Corvette longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Corvette longtube headers are mandrel bent, tig welded, and feature polished stainless steel construction. All of our Corvette longtube headers have been dyno proven. We stand behind our Corvette longtube headers in saying you will not find a better fitting, quality built, budget header for your vehicle.Features include: Mandrel Bent Tubing 1 7/8" Primaries Longtube Header Design Corvette LS2/LS3/LS6/LS7 Headers Improved Ground Clearance Over Competitors 3" Collector V8 Engines Only Gains over 25rwhp Merge Spike 6.0L, 6.2L, LS2, LS3, LS6, LS7 Engines Great Ground Clearance for Lowered Vehicles CNC Machined Flanges Natural 304 Stainless Steel 3" X-Pipe w/2.75" Reducers to Factory Exhaust 3" X-Pipe w/3" connection for Z06 Standard Graphite Manifold Gaskets Vehicles: 2005-2008 C6 Corvette & C6 Corvette ZO6 2009-2013 C6 Corvette & C6 Corvette ZO6/ZR1 Note: Will need our X-pipe kit for installing our headers. Note: True Dual Exhaust does"not" work with early 4L60 Transmissions. Only 6 speed auto and manual transmissions. Modification will be needed on the passenger side tube in order for a 4L60E Transmission to work. Note: Rear exiting exhaust kit will not work with vehicles equipped with differential cooler. Note: In order to make the True Dual Exhaust a complete bolt on kit it will require our headers and x-pipe. (Warning) This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.