High Horse Performance, Inc.Answer
Feb 16, 2024 - 07:22 AM
Looks like you would want the custom flash TCM then - product code HTP-61TCM
I see where you can get auto upshift with this TCM, but Can I Use this TCM to disable auto upshift on 07 and newer? Hemituner Performance Premium NAG1 TCM for 06-10 Challenger, Charger, Magnum, 300C & Grand Cherokee SRT8 6.1L HEMI
Pre-07 models came with no auto upshift, 07 and up come with it and cannot be disabled. Annoying when trying to do very legal burnouts 😬
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Open Feb 14, 2024 - 11:07 AM
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Hemituner Performance Premium NAG1 TCM for 06-10 Challenger, Charger, Magnum, 300C & Grand Cherokee SRT8 6.1L HEMI
At HHP, this HEMITUNER Transmission Control Module is our choice for an aggressive performance based TCM. The most noticeable change users will see are the higher than expected shift points. Features optimized shift schedule and performance tuned AutoStick¨ calibration with automatic upshift in...
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