Home » Jeep Engine & Fuel System » Engine Tuning » Performance Chips » Jet Performance 99111S STA Performance Stage 2 Chip for 1991 Jeep® Wrangler YJ with 4.0L Automatic Trans

Jet Performance 99111S STA Performance Stage 2 Chip for 1991 Jeep® Wrangler YJ with 4.0L Automatic Trans

Catalog #: 17608.0200
Jet Performance Part #: 99111S STA
Description
The JET Performance Module for Dodge, Chrysler and Jeep vehicles is a JET exclusive. Dynamic Spectrum Tuning provides power gains across the entire power band-not just at full throttle. Point by point air/fuel ratio, ignition advance and various other tuning points provide performance gains of up to 25 horsepower. Improves throttle response, acceleration and low end torque. Simple, plug-in installation in less than 30 minutes. Available in Stage 1 and Stage 2.
Details

Stage 2-Designed for the performance enthusiast, the Stage 2 features more aggressive programming to make the most horsepower and torque available. Fuel and timing curves are extensively modified for peak performance and drivability. Requires use of 91 octane fuel, 180 degree thermostat and free flow exhaust. Also works well with aftermarket intake systems, mass air sensors, TBI spacers, etc.

Installation Notes
Installation Difficulty:
Level 1Beginner

Simple, plug-in installation in less than 30 minutes.

Installation Time: Less than an hour
Parts Included

JET Power Control Module

  • Jeep Wrangler (YJ)

  • 1991 Jeep Wrangler (YJ)
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