Power Meets Icon: Peterbilt 389 with PACCAR 12.9L and +55 hp Software Optimization
Our latest software upgrade landed on a true American legend – the Peterbilt 389, equipped with a PACCAR 12.9L engine. With our +55 horsepower boost, this truck now delivers more torque, better response, and increased fuel efficiency for long hauls.
- More power without compromising reliability
- Smoother starts and stronger pulling under load
- Optimized fuel consumption on long-distance routes
Thanks to precise ECU software optimization, this Peterbilt is now a smarter, more efficient workhorse – no mechanical changes, just performance where it matters.
