Model Original (Tuned) Original (Tuned)
Jeep Cherokee 2.5 CRD 143 143 hp 175 hp 343 NM 400 NM
Jeep Cherokee 2.5 TD 115 115 hp 144 hp 278 NM 319 NM
Jeep Cherokee 2.8 CRD 150 150 hp 177 hp 360 NM 412 NM
Jeep Cherokee 2.8 CRDI 163 163 hp 193 hp 400 NM 457 NM
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Model Original (Tuned) Original (Tuned)
Jeep Commander 3.0 V6 CRD 218 218 hp 255 hp 510 NM 582 NM
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Model Original (Tuned) Original (Tuned)
Jeep Compass 2.0 CRD 120 120 hp 154 hp 310 NM 382 NM
Jeep Compass 2.0 CRD 140 140 hp 175 hp 310 NM 382 NM
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Grand Cherokee
Model Original (Tuned) Original (Tuned)
Jeep Grand Cherokee 2.5 CRDI 143 143 hp 179 hp 343 NM 389 NM
Jeep Grand Cherokee 2.5 TD 115 (+97) 115 hp 144 hp 300 NM 341 NM
Jeep Grand Cherokee 2.7 CDI 163 163 hp 200 hp 400 NM 472 NM
Jeep Grand Cherokee 3.0 CRD 218 218 hp 255 hp 510 NM 582 NM
Jeep Grand Cherokee 3.1 DCI 140 140 hp 167 hp 384 NM 442 NM
Jeep Grand Cherokee 2.8 CRD 150 150 hp 182 hp 360 NM 415 NM
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Model Original (Tuned) Original (Tuned)
Jeep Patriot 2.0 CRD 120 120 hp 155 hp 310 NM 384 NM
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Model Original (Tuned) Original (Tuned)
Jeep Wrangler 2.8 CRD 177 177 hp 211 hp 410 NM 472 NM
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Remapping or chip tuning your Jeep involves downloading the memory chips in the Engine Control Unit (ECU) responsible for storing instructions about how your engine runs and changing the information stored there. This memory is known as "firmware," and it is the major element in the operation of all digital devices. Auto engines in the past used mechanical methods to make performance-enhancing adjustments, but modern vehicles utilize on-board electronic diagnostic procedures. During remapping, your Jeep's diagnostics technology reads the data stored on the ECU chip and makes changes to improve the vehicle's performance. The data is accessed through the OBD/OBDII port. Remapping can be done on Jeep models dating from 2000.

Chip tuning is a similar performance-improvement process designed for pre-2000 models. Both procedures can improve your Jeep's engine performance significantly by enhancing torque and mpg. After chip tuning or remapping, you will notice that your vehicle has more power and a smoother ride. For pre-2000 Jeep models, performance tune-ups are accomplished by chip tuning. This requires removing the ECU to access the memory chip and then reading the data stored on the chip and making changes that will improve vehicle performance.

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