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After purchasing the TCM, can it be sent back for changes? And how much would it cost? Hemituner Performance Custom NAG1 TCM Flash for 05-08 Challenger, Charger, Magnum & 300C 5.7L HEMI
Using HPTCM-57
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Open Aug 21, 2026 - 07:59 PM
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Hemituner Performance Custom NAG1 TCM Flash for 05-08 Challenger, Charger, Magnum & 300C 5.7L HEMI
This TCM flash works excellent on stock through highly modified cars where this TCM is a must have! Featuring optimal shift points, shortened shift times, optimized shift patterns, raised torque limits, reduced transmission torque management, advanced converter lockup when possible and key line pres...
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