Flowtech Shorty Header-Natural Finish

2007-2014 Toyota Tundra 5.7L V8, 1-5/8" 409 Stainless Steel Shorty Header-Natural Finish

PART# 11146FLT

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FLOWTECH's emissions-friendly headers are just the ticket for those who want the best of both worlds - top performance and excellent value. All our Shorty Headers install easily to the factory exhaust system, retaining all stock emissions equipment, and offering maximum horsepower gains plus increased efficiency!


  • Mandrel-bent 1-5/8” diameter 16-gauge stainless steel tubing
  • Designed as a direct fit replacement for OEM exhaust manifolds
  • Offers improved horsepower and torque throughout RPM range
  • Bolts directly to factory head pipe
  • Extra thick 3/8” flanges for a leak-free seal
  • Complete with premium gaskets and hardware
  • Will accommodate all emission control devices
  • Available in Black Ceramic, Polished and Natural
  • Sold as a pair


Collector Diameter2-1/2 inch
Emission Code3
Product TypeHeaders
Tube Material409 Stainless Steel
Part Number11146FLT


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

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      Some parts are not legal for use in California or other states with similar regulations.