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Performance Chips by JET for 2004-2006 Jeep Wrangler TJ & Unlimited improve throttle response, acceleration and low end torque. They are construction with lightweight and very durable material. These Performance Chips features Dynamic Spectrum Tuning, point by point air or fuel ratio, advance ignition and some various other tuning points for great performance. You can install this product in less than 30 minutes. Order Now!