Speed Engineering Silverado & Sierra longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Silverado & Sierra longtube headers are mandrel bent, tig welded, and feature natural stainless steel construction. All of our Silverado & Sierra longtube headers have been dyno proven. We stand behind our Silverado & Sierra longtube headers in saying you will not find a better fitting, quality built, budget header for your vehicle.

Features include:

• Mandrel Bent Tubing
• Full 1 7/8" Primaries
• 3" Collector
• Longtube Header Design
• Silverado / Sierra / SUV LS Headers
• Merge Spike
• Gains over 25+ rwhp
• V8 Engines Only
• 4.8L, 5.3L, 6.0L, 6.2L Engines
• CNC Machined Flanges
• Natural 304 Stainless Steel
• Standard Graphite Manifold Gaskets

Vehicle Applications:

• 2007-2013 Silverado & Sierra (2wd/4wd)
  
• 2007-2014 Tahoe & Yukon (2wd/4wd)
  
• 2007-2014 Cadillac EXT Truck & Escalade SUV (2wd/4wd)
  
• 2007-2014 Chevrolet Avalanche (2wd/4wd)

Note: optional Y-Pipe "WILL WORK" on trucks & suv's with 6 Speed Automatic transmissions.

Note: Depending on factory exhaust type. Some cutting/welding may be required for Y pipe install.

(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.

**All Speed Engineering products Cannot be Exchanged or Returned**