Loading... Please wait...DSP5 Switch.
DSP5 is a customized ECM operating system developed by EFILive for the LB7 - LLY - LBZ - LMM Duramax Diesels.
DSP5 lets you to switch on the fly between five user programmable tunes; DSP5 does this by allowing you to use the EFILive tuning tool to create five versions of the main operating maps that control engine performance.
Installation instructions can be found here:
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