Flowtech Long Tube Headers

04-15 Nissan Titan/Armada & Infinity QX56 5.6L 1-5/8” Long Tube Headers 409SS- Natural Finish

PART# 18000FLT

$388.95   Suggested Retail
$349.95   Your Price
Estimated shipping date: 01/25/2019
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Increase the horsepower and torque of your Nissan or Infiniti by bolting on these long tube Race Only headers from Flowtech. These headers are designed with 3/8" thick laser-cut flanges and 1-5/8" mandrel-bent primary tubes. They're available in either 304 or 409 stainless steel and are offered in a Natural or Polished finish for your application.


  • Smooth transition, mandrel-bent, 1-5/8” diameter primary tubes and 2-1/2” diameter collectors with merge spears for smooth flow and increased exhaust velocity
  • 3/8” thick exhaust flanges for maximum strength and leak-free seal
  • Heavy Duty 16-gauge tubing for increased strength and durability
  • Available in 409SS (18000FLT- Natural Finish or 18001FLT – Polished Finish) or 304SS (18002FLT – Polished Finish) materials for long term good looks and corrosion resistance
  • Premium gaskets included


Application04-15 Titan/Armada/QX56, V8 5.6L
Collector Diameter2.50"
Emission Code3
Header StyleLong Tube
Primary Tube Dia.1-5/8 inch
Product TypeHeaders
Tube Material409 Stainless Steel
Part Number18000FLT


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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