Granatelli Street Fighter Coyote Coils: The Performance Ignition Upgrade for Your 5.0L Mustang or F-150

The Ford 5.0L Coyote is already known for strong factory performance, high RPM capability and excellent power potential.

But as these engines get older, rack up mileage or receive performance upgrades, the ignition system becomes an important part of keeping the engine running consistently.

For Coyote owners who want a performance-oriented ignition upgrade without stepping all the way up to a high-output race-style coil, Granatelli Motor Sports developed the Street Fighter Series.

The Granatelli Street Fighter Coyote coil packs are designed for Mustang GT, F-150 and other compatible 5.0L Coyote applications that need dependable spark performance for street and performance use.

What Are Granatelli Street Fighter Coils?

The Granatelli Street Fighter Series is the first step in Granatelli's performance ignition lineup.

These coil-on-plug ignition kits are designed as direct-fit replacements for compatible Ford Coyote engines while providing increased ignition capability over a basic factory-style replacement coil.

For current 2018–2025 Coyote applications, the Granatelli 28-1818SF Street Fighter coil kit is rated at up to 42,000 volts.

Why Upgrade Coyote Ignition Coils?

An ignition coil has one primary job:

Provide enough electrical energy to fire the spark plug consistently.

Over time, factory coils can be exposed to thousands of heat cycles, engine vibration and normal wear.

Performance modifications can also increase the demands placed on the ignition system.

A stronger, more consistent ignition system can be especially useful on Coyotes with:

• Cold-air intake systems
• Headers and exhaust upgrades
• Performance tuning
• E85 conversions
• Higher RPM use
• Street performance modifications
• Mild power adders

Street Fighter Coils Are Built for Street Performance

The Street Fighter Series is aimed at the enthusiast who wants more than a standard replacement coil but does not necessarily need the highest-output Granatelli ignition package.

That makes the Street Fighter a strong choice for:

• Daily-driven Mustang GTs
• Weekend performance cars
• Street-tuned Coyotes
• Naturally aspirated builds
• F-150 5.0L performance trucks
• Lightly modified Coyote engines

42,000-Volt Ignition Output

The current Granatelli Street Fighter Coyote coil kit is rated at up to 42,000 volts.

More available ignition voltage gives the coil additional capability when the spark plug requires more energy to fire.

This becomes increasingly important as engine load and cylinder pressure rise.

The goal is not simply to advertise a larger voltage number.

The goal is to provide a strong and consistent spark throughout the engine's operating range.

What Does Zero-Ohm Technology Do?

Granatelli Street Fighter coils incorporate zero-ohm ignition technology.

Electrical resistance can reduce the amount of available ignition energy delivered through the system.

Granatelli's design is intended to maximize energy transfer while still providing RFI and EMI suppression to help control unwanted electrical interference.

RFI and EMI Suppression

Modern Coyotes rely heavily on electronic engine management.

Sensors, modules, fuel injection, ignition control and the ECU all operate together.

That means high-performance ignition components need to provide strong spark performance without creating excessive electrical interference.

Granatelli Street Fighter coils are designed with RFI and EMI suppression for compatibility with modern vehicle electronics.

OBD-II Compatible

The Granatelli Street Fighter Coyote coils are designed to work with the factory OBD-II engine-management system.

They install as a direct-fit coil-on-plug upgrade on compatible vehicles and do not require an external ignition amplifier for normal installation.

Granatelli Street Fighter Coyote Fitment

Granatelli offers different Street Fighter part numbers because Ford changed the ignition configuration throughout the Coyote's production run.

Application	Granatelli Part Number
2011–2015 Ford Mustang / F-150 5.0L Coyote	28-1815SF
2016–2017 Ford Mustang 5.0L / 5.2L & F-150 5.0L	28-1816SF
2018–2025 Ford Mustang GT 5.0L Coyote	28-1818SF

Always verify year, vehicle, engine and factory coil connector before ordering.

Street Fighter Coils for the 2011–2015 Coyote

The Granatelli 28-1815SF is the Street Fighter coil-on-plug kit for compatible early Coyote applications.

Granatelli currently lists this kit for applications including:

• 2011 Ford Mustang 5.0L
• 2012 Ford Mustang 5.0L
• 2013 Ford Mustang 5.0L
• 2014 Ford Mustang 5.0L
• 2015 Ford Mustang 5.0L
• Compatible Ford F-150 5.0L applications

View Granatelli Street Fighter Coyote Coils – 28-1815SF

Street Fighter Coils for 2016–2017 Coyote Applications

The Granatelli 28-1816SF is designed for compatible 2016–2017 Ford Mustang and F-150 applications.

Granatelli currently lists this kit for:

• 2016–2017 Mustang GT 5.0L
• 2016–2017 Ford Mustang 5.2L applications
• 2016–2017 Ford F-150 5.0L

Because Ford made ignition changes during this period, Granatelli specifically recommends checking the original coil configuration before ordering.

View Granatelli Street Fighter Coils – 28-1816SF

2018–2025 Mustang GT Street Fighter Coils

For newer Coyote applications, Granatelli offers the 28-1818SF Street Fighter Coil-On-Plug and Connector Kit.

Current fitment includes:

• 2018–2025 Ford Mustang GT 5.0L Coyote
• 2018–2021 Ford F-150 5.0L Coyote
• 2018–2020 Ford Lobo 5.0L Coyote

The 28-1818SF is rated at up to 42,000 volts and includes Granatelli's zero-ohm technology, RFI/EMI suppression and direct-fit design.

View Granatelli 42K Street Fighter Coyote Coils – 28-1818SF

Street Fighter vs. Hot Street vs. Pro Series Xtreme

Granatelli offers multiple Coyote ignition levels so the coil package can be matched to the type of build.

Series	Output	Best For
Street Fighter	Up to 42,000 Volts	Street performance and naturally aspirated builds
Hot Street	Up to 50,000 Volts on current 2018-up kit	Tuned street cars and mildly boosted builds
Pro Series Xtreme	Up to 65,000 Volts	High-performance, supercharged, turbocharged and race combinations

Which Granatelli Coyote Coil Should You Choose?

The correct coil depends on the vehicle and how it is being used.

Choose Street Fighter If:

• Your Coyote is primarily street driven
• You have a naturally aspirated engine
• You have basic bolt-on modifications
• You want a performance upgrade over a standard replacement coil
• You want direct-fit installation

Choose Hot Street If:

• Your Coyote has more extensive street modifications
• You want additional ignition output
• You have a tuned naturally aspirated combination
• You have a lightly boosted street build

Choose Pro Series Xtreme If:

• Your Coyote is supercharged
• Your Coyote is turbocharged
• You are running nitrous
• You have a high-compression combination
• You are making serious horsepower
• Your ignition system is being pushed under high cylinder pressure

Do Street Fighter Coils Add Horsepower?

Ignition coils do not increase airflow or engine displacement.

Their job is to provide the spark needed to properly ignite the air/fuel mixture.

If the existing coils are weak or inconsistent, upgrading the ignition system can help restore or improve combustion consistency.

The amount of measurable horsepower gained depends heavily on the condition of the coils being replaced and the overall engine combination.

For that reason, Granatelli Street Fighter coils should be viewed as a performance ignition upgrade rather than a guaranteed fixed horsepower increase.

Do You Need a Tune for Street Fighter Coils?

Installing Granatelli Street Fighter coils by themselves does not normally require a tune.

The coils are designed to work with the factory OBD-II engine-management system on compatible vehicles.

However, if the vehicle has other performance modifications, the engine should always use a calibration appropriate for the complete combination.

Do Street Fighter Coils Require an Ignition Box?

No external ignition amplifier is required for normal installation.

The Street Fighter coils are designed as direct-fit coil-on-plug replacements for the compatible factory ignition system.

Should You Replace All Eight Coils?

For a Coyote V8, using a matched set of coils provides consistent ignition capability across all eight cylinders.

Granatelli Street Fighter kits are designed as complete coil-on-plug ignition upgrades rather than mixing different performance levels throughout the engine.

What About Spark Plugs?

Ignition coils and spark plugs work together.

If you are replacing aging coils, it is also a good time to inspect:

• Spark plug condition
• Spark plug gap
• Correct plug heat range
• Signs of fouling
• Signs of abnormal combustion

A stronger ignition coil cannot correct a damaged or incorrectly specified spark plug.

Are Street Fighter Coils Good for a Daily-Driven Mustang GT?

Yes.

That is one of the main applications the Street Fighter Series is designed around.

For a daily-driven Coyote Mustang with bolt-ons, tuning or normal street-performance modifications, the Street Fighter provides a performance-focused ignition upgrade without automatically moving into Granatelli's higher-output race-oriented coil packages.

Are Street Fighter Coils Good for an F-150 5.0?

Granatelli also offers Street Fighter fitment for compatible Ford F-150 5.0L Coyote engines.

This makes them an option for performance truck owners using:

• Tuning
• Cold-air intake systems
• Exhaust upgrades
• Street-performance modifications
• Higher-mileage ignition systems needing replacement

Granatelli Street Fighter Coyote Coil Features

• Performance coil-on-plug ignition design
• Up to 42,000 volts on current 28-1818SF applications
• Zero-ohm technology
• RFI and EMI suppression
• OBD-II compatible
• Direct-fit installation
• Complete coil and connector kits
• Designed for street-performance applications
• Available for multiple Coyote generations

The Bottom Line

Not every Coyote needs a 65,000-volt race-oriented ignition coil.

For many Mustang GT and F-150 owners, the goal is simply to upgrade the factory ignition system with a dependable performance coil designed for street use.

That is exactly where the Granatelli Street Fighter Series fits.

With direct-fit installation, zero-ohm technology, RFI/EMI suppression and up to 42,000 volts on current Coyote applications, Street Fighter coils provide a straightforward performance ignition upgrade for naturally aspirated and street-focused 5.0L builds.

And if the build eventually moves into serious boost, nitrous or high-horsepower territory, Granatelli also offers Hot Street and Pro Series Xtreme options to match the increased ignition demand.

Shop Granatelli Coyote Street Fighter Coils

Shop 2011–2015 Granatelli Coyote Street Fighter Coils – 28-1815SF

Shop 2016–2017 Granatelli Coyote Street Fighter Coils – 28-1816SF

Shop 2018–2025 Granatelli Coyote Street Fighter Coils – 28-1818SF

Shop All Granatelli Ford Ignition Coils