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Exhaust› Headers, Manifolds and Components

Flowtech

Shorty Headers Polished 1979-1993 Mustang 5.0L 1-3/4 Inch 304SS Shorty Header Polished Finish FlowTech

$606.95 $484.95 Save $122.00

SKU: F00M 12138FLT

Out of Stock
Special Order
Ships in 4–6 weeks
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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Flowtech 12138FLT is a polished shorty header designed for performance. Constructed from mandrel-bent 304 stainless steel tubes, these headers ensure consistent diameter for smooth flow and increased exhaust velocity. They feature 1-3/4 inch primary tubes and a 3-inch collector.

These headers are a direct fit for the popular 5.0L V8 engine found in the Fox-Body Mustang platform. They include premium aluminum header gaskets and mounting hardware for a leak-free seal and maximum strength. The OE-style 2-1/2 inch ball and socket collector connects to factory exhaust head pipes without cutting or welding.
Show original supplier description

Part #: 12138FLT

Flowtech Headers are the perfect blend of quality, performance, and value. These 1-3/4 inch shorty style race headers fit the very popular 5.0L V8 for the Fox-Body Mustang platform.The 1-3/4 inch tube size is the perfect upgrade for stroker motors and engines that have limited clearance issues and still require a free flowing header.Features and Benefits:Mandrel-bent 304 Stainless Steel tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity Heavy duty 16-gauge tubing for increased strength and durability Smooth transition, 1-3/4 inch diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response OE style 2-1/2 inch ball and socket collector connects to factory exhaust head pipe with no cutting or welding TIG-welded, machined 3/8 inch header flange for a leak-free seal and maximum strength Premium aluminum header gaskets included Available finishes include: High Temp Black Painted, Ceramic Coated and Polished These headers are a must upgrade if you are using a cold air intake, cat-back exhaust system or performance cylinder headsDetails:Air Injection Tubes: NoBolt size: 3/8-16 x 3/4Bolts Included: YesCARB (California) Compliant: NoCatalytic Converter Quantity: 0Collector Attachment: 2-Bolt FlangeCollector Diameter: 3.00 InchCollector Reducer Included: NoColor: SilverCylinder Head Flange Thickness: 3/8Design: ShortyDrive: 2WDEGT (Exhaust Gas Temperature) Port: NoEGT Port: NoEmission Code: 4Engine: Ford Small BlockFinish: PolishedFlange Thickness: 0.375 Inch, 3/8Gasket Or Seal Included: YesGrade Type: PerformanceHeader Finish: PolishedHeader Series: ShortyHeader Style: ShortyMaterial: 304 Stainless SteelMounting Hardware Included: YesOxygen Sensor Port: NoPort Shape: RectanglePrimary Tubing Diameter: 1-3/4, 1.75 InchProduct Type: HeadersQuantity: Sold as a PairTube Wall Thickness: 18 Gauge

Features:

  • Mandrel-bent 304 Stainless Steel tubes provide consistent tubing 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
  • Available finishes include: High Temp Black Painted, Ceramic Coated and Polished
  • These headers are a must upgrade if you are using a cold air intake, cat-back exhaust system or performance cylinder heads

1979-1993 Mustang 5.0L 1-3/4" 304SS Shorty Header - Polished Finish

Vehicle Symptoms
  • Loss of power under acceleration
  • Rattling noise from exhaust on cold start
  • Check engine light with exhaust-related code
  • Decreased fuel economy over time
  • Rough idle or hesitation when accelerating
Relevant Conversations
  • 5.0 Fox body Mustang shorty headers performance gain
  • Flowtech 12138FLT polished headers review
  • Best headers for 302 stroker motor clearance
  • Polished 304 stainless headers vs ceramic coated
  • Mustang exhaust header install time and difficulty
  • Shorty headers vs long tube for fox body
  • P0420 after header install fix
  • Rough idle and loss of power 5.0 Mustang
  • Upgrade exhaust system with Flowtech headers
  • Fox body Mustang exhaust sound clip shorty headers

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandFlowtech
Part NumberF00M 12138FLT

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