Ripp High Performance Coil Pack Kit with Spark Plug Wires

1997–2006 Jeep Wrangler TJ/LJ 4.0L I6

06TJLJ-RPSP

Overview:

The Ripp High Performance Coil Pack Kit with Spark Plug Wires is a complete ignition upgrade designed specifically for the 1997–2006 Jeep Wrangler TJ and LJ models equipped with the 4.0L inline-six engine. This full coil pack conversion kit replaces the factory coil rail with a high-output 6-post coil body, paired with premium Ripp spark plug wires for superior ignition performance. Ideal for Jeep enthusiasts seeking improved horsepower, throttle response, and fuel efficiency, this bolt-on system offers a straightforward installation with no tuning required.

By upgrading to the Ripp coil pack kit, you benefit from a more efficient ignition system that delivers increased spark energy for a more complete combustion process. This results in enhanced engine performance, better gas mileage, and a noticeable improvement in throttle response.

Key Features:

The Ripp High Performance Coil Pack Kit combines advanced ignition technology with durable construction to deliver reliable power and efficiency. Key features include:

• 31% more power output compared to the OEM coil pack rail for increased horsepower
• Direct bolt-on replacement with plug-and-play installation—no modifications or tuning needed
• Heavy-duty primary core winding and high-quality iron core with stronger laminations for sustained power delivery at high RPMs
• MOPAR orange, high-temperature, heat-resistant polymer housing and boots designed to resist shock, vibration, chemicals, and thermal cycling
• Ripp spark plug wires with low-resistance spiral wound steel core conductors for maximum voltage transfer and minimal energy loss
• High-quality silicone boots and coatings on wires for superior heat resistance and durability
• Improved throttle response and fuel economy through enhanced ignition efficiency
• Compatible with both naturally aspirated and supercharged 4.0L engines
• Includes a custom mounting bracket and converter harness for seamless integration

Construction & Design:

The Ripp coil pack features a robust design engineered to withstand the demanding conditions of off-road and daily driving. Its high-density polymer orange housing is epoxy-filled to resist shock, vibration, and exposure to harsh chemicals such as gasoline, oils, and brake fluids. The coil windings are insulated with a dielectric compound that ensures perfect insulation even under high voltage and thermal cycling conditions.

The spark plug wires utilize a spiral wound steel core conductor that significantly reduces electrical resistance compared to OEM graphite fiber wires. This design ensures maximum voltage delivery to the spark plugs, improving combustion efficiency and overall engine performance. The silicone boots and wire coatings provide excellent heat resistance, extending the lifespan of the ignition components.

Performance & Sound

Upgrading to the Ripp High Performance Coil Pack Kit can yield an average net gain of 8 to 10 horsepower at the wheels by delivering a stronger, more consistent spark. This enhanced ignition energy promotes a more complete burn inside the combustion chamber, resulting in improved throttle response and smoother engine operation. Additionally, the improved combustion efficiency can contribute to better fuel economy and reduced emissions. The coil pack and wires maintain reliable performance even at high RPMs, making them suitable for both street and off-road applications.

Installation & Fitment:

This kit is designed as a direct replacement for the factory coil rail on 1997–2006 Jeep Wrangler TJ and LJ models with the 4.0L inline-six engine. Installation is straightforward and typically takes about 1.5 hours. The kit includes a custom mounting bracket and converter harness to facilitate a clean and secure installation. Simply remove the stock coil rail and plug in the Ripp coil pack and spark plug wires. No tuning or additional modifications are required.

Important: Use the firing order directions provided on the box and disregard the numbered posts on the coil pack. The correct firing order for the 4.0L engine is 1-5-3-6-2-4.

What's Included:

• 1 x Ripp High Performance Coil Pack (3.8L coil)
• 1 x Ripp Coil Pack Mounting Bracket
• 1 x Ripp Converter Harness
• 1 x Ripp Spark Plug Wire Set

Ideal For:

This coil pack kit is perfect for Jeep Wrangler TJ and LJ owners looking to enhance their 4.0L engine’s ignition system for better performance and reliability. It suits daily drivers, off-road enthusiasts, and anyone seeking a simple, effective upgrade to increase horsepower, throttle response, and fuel efficiency without the need for complex tuning or engine modifications.

RIPP Modifications (RIPP) builds performance upgrades with a strong focus on supercharger systems and supporting components for popular street and truck platforms. With decades in the enthusiast space and vehicle-specific kit coverage, RIPP is a solid choice for drivers chasing big, usable power gains while keeping a complete, engineered package for tuning and daily reliability.