Know the landed cost before you order
Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.
Choose the long tube upgrade for your Coyote Mustang
Make the headers part of the exhaust you want on your 2011-2014 Mustang GT. This Kooks range offers three primary sizes, all with 3" collectors, giving you a choice around the engine modifications and exhaust you are building.
SKUs: 11412200, 11412400, 11412600
Three sizes with the same collector connection
Choose 1-3/4", 1-7/8" or 2" primaries. All three use 304 stainless steel, round ports, the stock bolt pattern and 3/8" laser-cut flanges.
Gaskets and bolt kits included
PY-8025-AL gaskets and BK109 / BK112 / BK114 bolt kits are supplied. Add the matching Kooks X-pipe or H-pipe for the required front exhaust connection. Heat tape for the starter wires is supplied and applied during the header installation.
Choose your configuration
| SKU | Configuration | Supplied arrangement | Fitting / engine conditions |
|---|---|---|---|
| 11412200 | Header Size: 1-3/4" | 1-3/4" primaries, 3" collectors; listed gaskets and bolt kits included. | Match the vehicle and engine rows below |
| 11412400 | Header Size: 1-7/8" | 1-7/8" primaries, 3" collectors; listed gaskets and bolt kits included. | Match the vehicle and engine rows below |
| 11412600 | Header Size: 2" | 2" primaries, 3" collectors; listed gaskets and bolt kits included. | Match the vehicle and engine rows below |
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Your 2011-2014 Mustang GT can be calibrated through our custom Mustang GT tuning service, with Remote or Hub Dyno options. Talk to us about your new headers when arranging the work.
Matching products
The Mustang GT GREEN X-pipe provides a 3-inch front and 2-3/4-inch OEM rear route for the 2011-2014 GT 5.0.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2011-2014 | Ford Mustang GT | 5.0L V8 | 11412200, 11412400, 11412600 | |
| 2012-2013 | Ford Mustang Boss 302 | 5.0L V8 | 11412200, 11412400, 11412600 |
Intended use
11412200, 11412400, 11412600: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 11412200, 11412400, 11412600.
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKUs | 11412200, 11412400, 11412600 |
| Application | 2011-2014 Mustang GT 5.0L 4V |
| Material | 304 stainless steel |
| Primaries | 11412200: 1-3/4"; 11412400: 1-7/8"; 11412600: 2" |
| Collectors | 3" |
| Head interface | Round port; stock bolt pattern; 3/8" laser-cut flanges |
| Contents | PY-8025-AL gaskets; BK109 / BK112 / BK114 bolt kits |
| Required connections | Matching Kooks X-pipe or H-pipe |
| Heat protection | Starter-wire heat tape supplied |
Frequently asked questions
Is the biggest size always the best choice?
Choose around the engine's output, modifications and intended use. We can help you match the primary size to your build.
Is the crossover supplied with the headers?
The matching Kooks X-pipe or H-pipe is purchased separately.
