The 2012 Jeep Grand Cherokee SRT8 won't hit dealerships until later this year, but an unnamed tuner has already created a revised ECU for the high-performance model.

The 2012 Jeep Grand Cherokee SRT8 won't hit dealerships until later this year, but an unnamed tuner has already created a revised ECU allowing for the high-performance model to produce a nice smoke screens as seen in the video.

No details about the ECU upgrade were mentioned yet, but the standard 6.4-liter HEMI V8 develops 465 hp (347 kW / 471 PS) and 465 lb-ft (630 Nm) of torque. Regardless of the final specifications, the standard model is priced from $55,295 and accelerates from 0-60 mph in 4.8 seconds.

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