JET Performance Module, Stage 2, 2004-2006 Jeep TJ Wrangler 4.0L
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.
- 2004-2006 TJ Wrangler
- 4.0L 6 Cylinder engine
- Manual or automatic transmission
- “Legal in California only for racing vehicles which may never be used upon a highway”