Peterbilt 384 with CAT C13 Engine – Boosted to 520 HP with +50 HP ECU Upgrade

This Peterbilt 384 is no lightweight when it comes to heavy-duty hauling. Under the hood, it's powered by the legendary Caterpillar C13 engine, now professionally upgraded with +50 extra horsepower – bringing the total output to an impressive 520 HP.

No mechanical changes were made – just clean, safe, and effective ECU software optimization, designed to increase power and torque while maintaining long-term reliability.

✅ What this upgrade delivers:

  • +50 HP added, now at 520 HP total
  • Better acceleration and smoother pull
  • More torque under load
  • Improved fuel efficiency
  • Safe, software-only modification

This Peterbilt 384 is now more capable, more efficient, and more reliable than ever – making every haul easier on the engine and on your wallet.

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