O.CT Tuning Reworks SRT8 Jeep GC and Dodge Challenger

Challenger boasting over 700 horses.

German engine tuner O.CT Tuning has revealed a series of power upgrades for the SRT8 variants of the Jeep Grand Cherokee and Dodge Challenger. The 6.4-liter HEMI V8 was uprated with a custom compressor kit, a charge air cooler and a remapped ECU. The result was a boost in output from 477 hp and 470 lb-ft of torque to 564 hp and 542 lb-ft. Additional modifications are also on offer if customers desire power beyond 600 horses.

In fact, the Challenger SRT8 pictured here boasts a HEMI V8 bored out to 7.0 liters delivering 720 hp and 645 lb-ft of torque. A compressor upgrade for the HEMI V8-equipped Dodge Ram 1500 is also on offer.

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