Shorty Header for 2005-2009 Ford Mustang [Polished]
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FLOWTECHPART NUMBER: 387-12124

Shorty Header for 2005-2009 Ford Mustang [Polished]

Color:

Black
Natural
Silver
$33895
ShippingShips on 09/10/2026
Lowest PriceLowest Price Guarantee

Ford/Mercury Cars
Shorty Exhaust Header
  • 2005-2009 Ford Mustang
  • Ford Mod Motor Engine Applications
  • 1 5/8 In. Primary Tubes, 2.50 In. Collector
  • 304 Stainless Steel Construction
  • Polished Finish
  • Sold As a Pair

    Designed for 2005-2009 Ford Mustang, this header routes spent gases away from the Ford Mod Motor more efficiently than the factory manifold.

    What's Included:

    • 1 5/8 in. primary tube diameter for optimized exhaust velocity.
    • 2.50 in. collector diameter for a smooth transition into the exhaust system.
    • 304 Stainless Steel construction with a polished finish for durability.
    • Sold as a Pair, complete with mounting hardware and gaskets for installation.
    • Bolt-On Exhaust Headers for High-Flowing Performance!

      Flowtech is a smart choice for quality performance exhaust headers at a great price.  All Flowtech Headers application-specific for an exact fit and feature a 3/8 in. thick flange to provide a leak-free seal

      Show More

      A free-breathing engine is essential to performance, and that includes exhaust as much as intake. A set of headers from FlowTech is a great enhancement that can help you get the performance you want, at a surprisingly affordable price. All headers from FlowTech are designed for a precise fit, and custom engineered for specific applications. 

      Performance Benefits & Key Features

      FlowTech headers are available in long tube or shorty designs, with black finish, great-looking polished stainless or ceramic coating. Y-pipes are available for select header designs, for ease of connection. All FlowTech headers feature a ⅜” thick flange to ensure a leak-free seal at the cylinder head. 3-bolt flanges and 3” collectors are standard with FlowTech headers. 

      Fitment, Compatibility & Applications

      FlowTech headers are available for all kinds of 60s and 70s era vehicles, including Mopars, Chevrolet, Ford, Pontiac and Oldsmobile, including fitments for Ford, Chevrolet and Dodge trucks. FlowTech even offers headers for rare and esoteric fitments like the Ford 352 to 428 FE engine family as well as Jeep engines, Oldsmobile 260 and 403 engines and AMC 290 and 401 engines. This includes popular models like the Mustang, Camaro, Nova, Chevelle and Camaro as well as full-size cars like the Impala and Caprice, as well as hard-to-find fitments for rides like the Ford Maverick, Dodge Ramcharger, Ford Fairlane, Ford Torino and even the 1980s Monte Carlo.

      Some applications might require modifying stock exhaust to retain the catalytic converter, or modifications to parts like the AC compressor bracket or power steering pump bracket. Exhaust header wrap and spark plug wire boot guards are recommended when installing headers. Remember to check your state’s laws regarding emissions and exhaust modifications for street-driven vehicles; in some cases, headers are only permissible for non-emission controlled vehicles or vehicles used solely for the purpose of closed competition racing. 

      FlowTech also offers headers that are compatible with later vehicles equipped with catalytic converters, as well as a reducer that can be used with oxygen sensors. Tough 18 gauge tubing is designed for durability and rust resistance. 

      FlowTech headers come with all hardware and connectors needed for installation. All in all, FlowTech is a smart choice when you want to boost exhaust flow and spike horsepower and performance, at an affordable price.

    Part TypeHeader
    Product LineFlowTech Headers
    BrandFLOWTECH
    Package Height6.9
    Package Width14.8
    Package Length18.4
    Weight23.04 PG
    Part CategoryPerformance Parts
    Coating/FinishPainted
    Header Flange Thickness0.375 in.
    Tube DirectionDown Swept
    ColorSilver
    QuantityPair
    Material304 Stainless Steel
    Engine Make/SizeFord Mod Motor
    Port ShapeD-Port
    Tube Size1.625 in (41.3 mm)
    Carb CompliantYes
    Collector Diameter2.50 in.
    Collector Tube Size2.5 in (63.5 mm)
    Part FitmentDirect Fit
    FinishPolished
    ApplicationAutomotive
    Header StyleShorty
    Grade TypePerformance
    Tube Diameter1.625 in (41.3 mm)
    Primary Tube Diameter1 5/8 in.
    Vendor Part Number12124FLT
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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