Power/Efficiency Sys

Gain up to +29 hp/40 lb-ft! Banks PowerPack boosts power to overcome larger tires and improve 0-60 times, passing, and hill climbing. The system removes factory restrictions for maximum engine efficiency, power, and fuel economy. Chrome tip. Includes Revolver exhaust manifold.
The ultimate engineered power system: adds exhaust manifold to Stinger system, removes more factory restrictions for maximum engine efficiency, power and fuel economy. 4.0L 6-CYL: 1998-06 WRANGLER TJ. PowerPack combines all of Banks' 4.0L Jeep airflow upgrades to maximize power no matter what the terrain. It starts with the free-breathing Banks Ram-Air Intake and high-flow Monster Exhaust, then adds torque-optimizing exhaust manifold (Banks Revolver for 1998-99 models or TorqueTubes for 2003-06). PowerPack unleashes the power your engine wastes trying to overcome factory intake and exhaust airflow restrictions. By improving engine efficiency, more power gets to the rear wheels, your engine lives longer and fuel economy improves. The exhaust note is rich and authoritative, and includes a stainless-steel tailpipe tip in either chrome or black. The included Banks AutoMind programmer comes ready to run with pre-loaded power, with towing, sport, or economy settings right out of the box... and right for the job at hand! Its calibrations were developed with power and increased MPG in mind. The AutoMind can also display a host of critical engine functions and provides service technician diagnostic capabilities with its ability to scan and clear vehicle trouble codes. Gale Banks talks about the exhaust manifolds for 4.0L Jeeps... Banks TorqueTube headers have been the best available power producers for quite a while.

Additional Information

PowerPack Bundle for 1998-1999 Jeep Wrangler TJ 4.0L

Application Summary

1998-1999 Jeep 4.0L Wrangler

Part Type

Exhaust System / Air Intake Assembly / Computer Chip Programmer Kit

Product Overview

The ultimate engineered power system: adds exhaust manifold to Stinger system, removes more factory restrictions for maximum engine efficiency, power and fuel economy. 4.0L 6-CYL: 1998-06 WRANGLER. PowerPack combines all of Banks 4.0L Jeep airflow upgrades to maximize power no matter what the terrain. It starts with the free-breathing Banks Ram-Air Intake and high-flow Monster Exhaust, then adds torque-optimizing exhaust manifold (Banks Revolver for 1998-99 models or TorqueTubes for 2003-06). PowerPack unleashes the power your engine wastes trying to overcome factory intake and exhaust airflow restrictions. By improving engine efficiency, more power gets to the rear wheels, your engine lives longer and fuel economy improves. The exhaust note is rich and authoritative, and includes a stainless-steel tailpipe tip in either chrome or black. The included Banks AutoMind programmer comes ready to run with pre-loaded power, with towing, sport, or economy settings right out of the box... and right for the job at hand! Its calibrations were developed with power and increased MPG in mind. The AutoMind can also display a host of critical engine functions and provides service technician diagnostic capabilities with its ability to scan and clear vehicle trouble codes. Gale Banks talks about the exhaust manifolds for 4.0L Jeeps... Banks TorqueTube headers have been the best available power producers for quite a while. About a year ago, I applied my 5 cylinder collector patent to the 91-99 Jeep 4.0L 6-cylinder header using a firing center tube & I Kicked My Own Ass! The NEW Revolver header matches the low end of the previous TorqueTube design & adds a ton of top end power. Have a look at the wheel dyno results. Above 3400 rpm weve added power so your Jeep marches to the shift with no loss in low end torque. Add a complete Banks PowerPack Bundle & get even more! --Gale Banks

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

Gain up to 29 hp/40 lb-ft

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Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions
2.	Owner's Manual

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Performance Packages, PowerPack Bundle, Revolver Manifold, Monster Exhaust, Black Tip, Ram-Air Intake, AutoMind Tuner, Jeep, 4.0L, Wrangler, Kit

Banks Power Jeep 1998-1999 4.0L PowerPack systems unleash the power your engine wastes trying to overcome factory intake and exhaust airflow restrictions. By improving engine efficiency, more power gets to the rear wheels to help extend engine life, and fuel economy improves. PowerPack combines Banks 4.0L Jeep airflow upgrades to maximize power no matter what the terrain! It starts with the free-breathing Banks Ram-Air intake and high-flow Monster exhaust, then adds torque-optimizing exhaust manifold. The exhaust note is rich and authoritative and includes a tailpipe tip in either a chrome or black finish. An included AutoMind programmer comes ready-to-run with pre-loaded power, with towing, sport, or economy settings right out of the box for the job at hand!