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For updated or revised tunes, please order this.  Include all info.
Need to link your old CA Autocal to CTT? Enter the Serial No. off the back of your unit. Do…
This is a direct replacement MAP sensor for your 03-07 5.9L Cummins, 07.5-18 Cummins, and Nissan Titan Cummins. It will…
After placing your order, you MUST send in a read of the factory file. Once received, a file will be…
For faster refund processing, completely fill out the core return form after sending in your cores.
Link to CTT

Link to CTT

EFI Live HD Cummins Tuning

EFI Live HD Cummins Tuning


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