Stealth Diesel Tuning

  2018/2019/2020/2021 CME Bypass Cable (also known as the Security Gateway Module Bypass Cable) can be used in multiple ways and using multiple platforms. You will need this cable - On the...

  The CSP5 switch has a replacement OBD II connector for a cleaner, stock-looking install. It is compatible with both MM3 and EFILive® tuning. It currently covers 2006-Pesent...

DSP Switch for 2001-2004 Duramax LB7

DSP Switch for 2004.5-2005 Duramax LLY

DSP Switch for 2006-2010 Duramax LBZ/LMM

DSP Switch for 2011-2016 Duramax LML

Have a ECM/PCM/TCM that was flashed by a Spartan Tuner, or a locked ECM from a previous tuner? We can flash the ECM/TCM/PCM back to stock or install a modified calibration. This service is a send...

Power Levels: Tow - 30hp Economy - 60hp Street - 90hp Race - 120hp Max Effort - 150hp (200hp if Built Trans with Trans Tuning) Includes: Autocal Device preloaded with selected...

Power Levels: Tow - 30hp Economy - 60hp Street - 90hp Race - 120hp Max Effort - 180hp Includes: Autocal Device preloaded with selected tune(s) OBD Cable USB Cable Instructions Add...

Power Levels: Tow - 30hp Economy - 60hp Street - 90hp Race - 120hp Max Effort - 150hp Includes: Autocal Device preloaded with selected tune(s) OBD Cable USB Cable Instructions Add...

Power Levels: Tow - 30hp Economy - 60hp Street - 90hp Race - 120hp Max Effort - 180hp Includes: Autocal Device preloaded with selected tune(s) OBD Cable USB Cable Instructions Add...

Power Levels: Tow - 30hp Economy - 60hp Street - 90hp Race - 120hp Max Effort - 150hp Includes: Autocal Device preloaded with selected tune(s) OBD Cable USB Cable Instructions Add...

Power Levels: Tow - 30hp Economy - 60hp Street - 90hp Race - 120hp Max Effort - 180hp Includes: Autocal Device preloaded with selected tune(s) OBD Cable USB Cable Instructions Add...

Power Levels: Tow - 30hp Economy - 60hp Street - 90hp Race - 120hp Max Effort - 180hp Includes: Autocal Device preloaded with selected tune(s) OBD Cable USB Cable Instructions Add...