With recent models generating up to 395 horsepower and 410 lb-ft of torque, the 5.7L HEMI ... an unlocked PCM to adjust its performance settings. If you are tuning a 2003 Ram 1500, for example ...

For the first several years, there's no difference in performance as the engine produced 160 horsepower and 400 lb-ft of torque from 1989 ... you get some aftermarket tuning done you can reach ...

Installing a cold air intake is the simplest and most effective performance upgrade ... and up to 25 lb-ft of torque, making it a top choice among enthusiasts. Tuning is an effective way ...