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Stainless Works 1-7/8 in. Headers w/ Off-Road Y-Pipe - Factory Connect (07-13 5.3L Sierra 1500)

AmericanTrucks no longer carries the Stainless Works 1-7/8 in. Headers w/ Off-Road Y-Pipe - Factory Connect (07-13 5.3L Sierra 1500). Please check out 2007-2013 Sierra 1500 Headers for an updated selection.

Features & Details

  • High-Performance Catalytic Converter
  • Better Torque and Horsepower
  • Stainless Steel Construction
  • 1-7/8 in. Diameter Tubes
  • Includes Off-Road Y-Pipe
  • Fully Install-Ready
  • Fits 2007 to 2013 5.3L GMC Sierras
  • Designed for the Extended Cab with the Standard Box or Crew Cab with the Short Box
High-Flow Performance. Better exhaust flow for your GMC Sierra means better performance on the road. These Stainless Works 1-7/8 in. Headers with Off-Road Y-Pipe replace your restrictive factory catalytic converter, allowing the Factory Connect Headers and Off-Road Y-Pipe to work together in improving exhaust flow and increasing your vehicle's torque and horsepower.

Quality Construction. The Stainless Works 1-7/8 in. Headers with Off-Road Y-Pipe exhaust system features 1-7/8 in. diameter CNC mandrel-bent Long Tube Headers and 304 stainless steel tubing. TIG welding and 3/8 in. laser-cut header flanges add extra strength to the system and deliver a leak-free and corrosion-resistant performance. The headers come with 3-in. slip-fit connectors with merge spikes. And just in case there is any doubt about the overall quality, the headers are backed by Stainless Works' Limited Lifetime Guarantee on superior workmanship and materials.

Full Installation Kit. This kit comes with everything you'll need for a full, professional installation of your high-flow catalytic converter. The Stainless Works 1-7/8 in. Headers with Off-Road Y-Pipe fit to your truck's existing factory system.

Application. The Stainless Works 1-7/8 in. Headers with Off-Road Y-Pipe fit 2007 to 2013 5.3L GMC Sierra models with the following cab and box configurations.
  • Extended Cab with the Standard Box
  • Crew Cab with the Short Box

Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

What's in the Box
  • (1) Driver Side Header
  • (1) Passenger Side Header
  • (1) Driver Side Lead Pipe
  • (1) Passenger Side Lead Pipe
  • (1) Y-Pipe
  • Hardware
Installation Info
Will it fit my Sierra 1500?

    Customer Photos

      Questions & Answers (2)

      2 Top Rated Questions

      Is this one legal in California to pass smog?

      • As this eliminates the factory cats it would not pass smog. 

      Helpful (0)

      will this fit a 4wd as well???

      • Yes, this will fit the 2WD and 4WD models.

      Helpful (0)
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