Peterbilt 385 Chiptuning File Service for Professionals

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Find the right tuning file for the Peterbilt 385 in just a few clicks. File service built for automotive professionals, with instant access, full compatibility and expert support.

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Peterbilt 385

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Stage 1, Eco and Performance Tuning Files for the Peterbilt 385

Looking for a high-performance tuning file for the Peterbilt 385? At OLSx, we provide custom ECU remapping files specifically tailored for the 385. Whether you're targeting a Stage 1 power upgrade, an Eco remap for fuel savings, or a full Stage 2 setup, our configurator gives you instant access to dyno-tested, tool-compatible files. All files are compatible with major tools like Autotuner, Kess, and Ktag. Trusted by garages and professionals across the world, our service ensures fast, secure, and precise tuning for the Peterbilt 385.