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FAST 30391-8 XR Series High-Performance Ignition Coil Set - Ford 4.6L/5.4L/5.8L 4V Modular

(Ford Mustang 1997-2001, 2003-04, 2007-14, GT 2005-06; Lincoln Navigator 1999-2005, Continental 1997-2002, Mark VIII 1997-98, Aviator 2003-05 + 5 more models)

Manufacturer

Picture for manufacturer FAST

Part Number

30391-8
7 reviews
Sale Price

$344.95

Estimated ship date Monday, November 23

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The FAST 30391-8 XR Series Ignition Coil Set delivers high-performance spark energy for 1999-2014 Ford 4.6L, 5.4L, and 5.8L 4-valve modular engines. Engineered for improved combustion efficiency, these coils provide stronger spark output than factory coils, resulting in better throttle response, smoother idle, and more consistent performance under demanding conditions.

Key Features:

  • Direct-fit replacement for Ford 4V modular engines (4.6L, 5.4L, 5.8L)
  • Enhanced spark energy for improved combustion and power delivery
  • High-temperature epoxy construction resists heat and vibration
  • Advanced winding design reduces misfires and improves idle quality
  • Complete set for all cylinders - ready to install
  • Compatible with factory engine management systems

This coil set is ideal for street performance, forced induction applications, and high-RPM driving where consistent ignition performance is critical. The XR Series coils are designed to work seamlessly with aftermarket engine management systems while maintaining compatibility with stock Ford ECUs.

Products specifications

Fits

Ford Mustang 1997-2001, 2003-04, 2007-14, GT 2005-06; Lincoln Navigator 1999-2005, Continental 1997-2002, Mark VIII 1997-98, Aviator 2003-05, Blackwood 2002-03; Mercury Marauder 2003-04; Panoz Esperante 2001-07, AIV Roadster 1999-2000 + 1 more models

Coil Color

Black

Coil Wire Included

No

Turns Ratio

83:1

Coil Shape

OEM

Quantity

8

Primary Resistance

0.35

Primary Inductance

0.5mH

Maximum Voltage

40000

Oil Filled

No

C.A.R.B. Exempt?

No

Coil Style

OEM

Mount Type

OEM

Mounting Position

OEM

Coil Internal Construction

Potted

Engine Fitment/ Year, Make and Model Range

1997-2014 Ford 4.6L/5.4L/5.8L with 4-valve heads

Secondary Resistance

5.5K

Includes Hardware?

No

Coil Wire Attachment

OEM

Meets or Exceeds OEM Specs

Yes

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Ballast Resistor Included

No

Mounting Bracket Included

No

So far so good

It was easy an fast

Good service and fast!!

Nice straight forward process

Part came timely and did the job!

Great price and free delivery!

Product was real and the price was right. That's a rap....

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