Flowtech: 1-7/8” Shorty Headers for ’11-’14 Mustang 3.7L V6

If you’re using a cold air intake, cat-back exhaust, or tuner on your 2011–2014 Mustang 3.7L, these 1-7/8” shorty headers from Flowtech are the upgrade you need to take your ride to the next level.

Providing a terrific combination of quality and value, these headers offer consistent tubing diameters, smooth flow, and increased exhaust velocity thanks to mandrel-bent 409 stainless steel (or 304 SS) set in heavy-duty, 16-gauge tubing. In addition, the 1-7/8” diameter primary tubes offer improved throttle response. Premium aluminum gasket headers are included, and three finishes are available: Natural (12140FLT; 409 SS), Polished (12141FLT; 304 SS), and Silver Ceramic (32141FLT; 409 SS).


  • Mandrel-bent 409 stainless steel (12140FLT & 32141FLT) or 304 stainless steel (12141FLT).
  • Consistent tubing diameters for smooth flow and increased exhaust velocity.
  • Heavy-duty 16-gauge tubing for increased strength and durability.
  • Smooth-transition, 1-7/8” diameter primary tubes offer increased exhaust flow, enhanced performance, and improved throttle response.
  • OE-style 2-1/2” collector connects to factory exhaust head pipe without cutting or welding.
  • TIG-welded, machined 3/8” header flange for a leak-free seal.
  • Three finishes: Natural, Polished, and Silver Ceramic Coated.
  • Premium aluminum header gaskets included.

For more information contact a Karbelt Pickering sales associate.

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