Flowtech® (11-14) Mustang V6 409SS 1.75" x 2.5" Long Tube Headers

  • Sale
  • Regular price $432.95

Compatible: (3.7L)

2011 - 2014 Ford Mustang V6


This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Flowtech Headers are the perfect combination of quality and value. These Full Length (Long Tube) style headers fit the popular 2011-2014 Ford Mustang 3.7L V-6 models.


  • Mandrel-bent 409 Stainless Steel tubing provide consistent diameters for smooth flow and increased exhaust velocity
  • Heavy Duty 16-gauge tubing for increased strength and durability
  • Smooth transition, 1-3/4” diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response
  • OE style 2-1/2” ball and socket collector connects to factory exhaust head pipe with no cutting or welding
  • TIG-welded, machined 3/8” header flange for a leak-free seal and maximum strength
  • Premium aluminum header gaskets included
  • Also available in Polished and Silver Ceramic Coated finishes

Brand Flowtech
Collector Diameter 2.50 inch
Emission Code 4
Engine Ford V6
Finish Natural
Flange Size 3/8 Inch
Header Finish Natural
Header Style Long Tube
Primary Tube Dia. 1-3/4 inch
Product Type Headers
Part Number 12142FLT

Install Guide: