Experience faster acceleration and increased power with a Fire Power Ignition. These Kits for '91-'99 4.0L Wrangler engines include a set of Live Wire Plug Wires, a Screamin' Demon Ignition Coil and a Firepower Cap and Rotor. The Screamin' Demon Coil allows you to run an astounding .065" spark plug gap to deliver a much more powerful fuel mixture detonation. Kits are available with Blue, Black or Red Plug Wires & Caps. '98-'99 requires Adapter Harness.
Note: Does not fit 2000-2006 Wrangler TJ 4.0 Models
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The Firepower Ignition Kit Benefits Include
Greater Throttle Response
Better Fuel Economy
Wider Spark Plug Gaps
Quicker Starting / Smoother Idle
More Horsepower and Torque
Brass Terminal Provides Better Conductivity and Corrosion Resistance
Live Wires Heat Protection Allows for Longer Life
Cap and Rotor Offer Superior Dielectric Strength and Better Resists Carbon Tracking
Easy Installation with Precut and Labeled Wires for Each Cylinder
Installation Notes
Installation Difficulty:
Level 2 Intermediate
Not to be used with Gapless spark plugs such as E3 brand.
Installation Time:1-2 hours
Parts Included
Screamin' Demon Coil
DUI 4.0 LiveWires
Firepower Cap and Rotor
Experience faster acceleration and increased power with a Fire Power Ignition. These Kits for '91-'99 4.0L Wrangler engines include a set of Live Wire Plug Wires, a Screamin' Demon Ignition Coil and a Firepower Cap and Rotor. The Screamin' Demon Coil allows you to run an astounding .065" spark plug gap to deliver a much more powerful fuel mixture detonation. Kits are available with Blue, Black or Red Plug Wires & Caps. '98-'99 requires Adapter Harness.
Note: Does not fit 2000-2006 Wrangler TJ 4.0 Models
Learn More
The Firepower Ignition Kit Benefits Include
Greater Throttle Response
Better Fuel Economy
Wider Spark Plug Gaps
Quicker Starting / Smoother Idle
More Horsepower and Torque
Brass Terminal Provides Better Conductivity and Corrosion Resistance
Live Wires Heat Protection Allows for Longer Life
Cap and Rotor Offer Superior Dielectric Strength and Better Resists Carbon Tracking
Easy Installation with Precut and Labeled Wires for Each Cylinder
Installation Notes
Installation Difficulty:
Level 2 Intermediate
Not to be used with Gapless spark plugs such as E3 brand.
Installation Time:1-2 hours
Parts Included
Screamin' Demon Coil
DUI 4.0 LiveWires
Firepower Cap and Rotor
