Mud bogging requires tons of power and torque to keep the big tires spinning fast enough to clear the mud from the tires' treads and keep the Jeep moving forward, so a turbo definitely was in order.

Jeep’s 4.0-liter straight-six engine is iconic ... It made 394 hp at 6,100 rpm and 375 lb-ft of torque at 4,600 rpm without the turbo, which is mighty impressive considering the straight ...

Owing to its simplistic cam-in-block design, Jeep’s 4.0-liter straight-six is ... which an On3 Performance 7675 turbo and an air-to-water intercooler can drive as high as 20 psi.