DIESELR RTD4 Tune Files (2024-2026 Duramax L5P 6.6L) - Global BThe 20242026 L5P RTD4 Tune File that customers have been waiting for is now available. This is are single level, Upto +180HP custom tuning files created for the 2024 2026 6. 6L Duramax L5P equipped with the latest E42 (Global B) ECM. Its written for the HP Tuners RTD4 platform and designed to deliver clean power with no guesswork. This RTD4 custom file is dyno tested on real 20242026 L5P trucks. The stock output baseline was 433HP. With this file, our
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DIESELR RTD4 Tune Files (2024-2026 Duramax L5P 6.6L) - Global B