Speed Engineering headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our headers are mandrel bent, tig welded, and feature natural stainless steel construction. All of our headers have been dyno proven. We stand behind our headers in saying you will not find a better fitting, quality built, budget header for your vehicle. Features include:Mandrel Bent TubingFull 1 7/8" Primaries3" CollectorMerge SpikeGains over 25+ rwhpV8 Engines Only6.0L EnginesCNC Machined FlangesNatural 304 Stainless SteelStandard Graphite Manifold Gaskets Speed Engineering Y-Pipes are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Y-Pipes are mandrel bent, tig welded, and feature polished stainless steel construction. All of our Y-Pipes have been dyno proven. We stand behind our headers & Y-Pipes in saying you will not find a better fitting, quality built, budget header for your vehicle.Features include:Mandrel Bent Tubing3" TubingPolished 304 Stainless SteelStainless Steel Band ClampsVehicle Applications:2006-2009 Chevrolet Trailblazer SS AWD & RWD SCG Tips:-DO NOT run the graphite gaskets that Speed Engineering supplies. ONLY run OEM MLS gaskets. -Replace the motor mounts during header install. It is a good time to do it and will ensure proper fitment of headers to the engine bay. We sell and stock BFW engine mounts.-Be prepared to deal with broken factory header bolts. The easiest way to remove them is to weld an M8x1.25 nut to them and back them out. Use ARP bolts when installing these headers. -If you are finding that the headers are fitting too wide and are hitting the inside of the frame check that your slip joints in the y-pipe are not bottoming out. (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.
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