LS Headers 99-06 Silverado 2"

Speed Engineering Long Tube Mandrel Bent, 304 Stainless Headers Compatible with all LS V8 trucks from 1999 to 2006 Mandrel Bent Tubing 2" Primaries 3" Collector CNC Machined Flanges Includes: headers with graphite gaskets Vehicle Applications (suggested by Speed Engineering): 1999-2006 Chevrolet  SIlverado Truck & Tahoe SUV (2wd & 4wd) 1999-2006 GMC Sierra Truck &  Yukon SUV (2wd & 4wd) 2002-2006 Cadillac EXT Truck (2wd & 4wd) 2002-2006 Cadillac Escalade SUV (2wd & 4wd) 2002-2006 Chevrolet Avalanche (2wd & 4wd) Revised Y-Pipe: Now works with 4L60E & 4L80E transmissions. Also allows more room for 4wd vehicles. Note: If using a larger 4L80E transmission the bellhousing ears may need to be trimmed for proper clearance. Note: Earlier 2500's might have fitment issues due to chassis being designed from previous years. Note: Most 6.0 applications have a 2 into 1 exhaust system which our y pipe system will not work with. Double check your exhaust for confirmation of fitment with single exhaust. Our x pipe kit can work on the 2 into 1 exhaust systems, but require fabrication for connection. (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.