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Discussion Starter · #1 ·
Since using diablo ive had non stop issues with tuning. Basically I cant put a new tune on the vehicle its saying the pcm was previously tuned by a diablo device and wont let me upload any new tunes. When i got the car it was stock and im the only person that has tuned it.. im wanting to switch to sct or hp tuners anyone have recomendations? Also must the car be returned back to stock tune or can the sct/hp just overide the diablo tune?
 
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