Performance Chip, Stage 1 3.8L Man/Auto

Fits 2007, 2008 Jeep Wrangler Jk and Unlimited jk with 3.8 Liter V6 Engine Jet Stage 1 Performance Chip with manual or automatic The JET Performance Module for 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.