No it will hold the program.Just the extra's that it has alot of people dont know about nor need.
Its a great speedo.Goodluck with it.
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the SX12 is probably one of the best GM speedies around. If you have the GM commander charger you can use it to program the ESC. That is the feature I love most about the SX12. It is more updated the V12. Check it out. Everything that I have bought that is GM is top notch equipment except the battery case (not there faught) because it is just a re-badge of some elses design. But if you buy a GM Speedie it will give you what you crave. I have used the Quatum Comp2 for awhile and I love it but the SX12 has a better programing for stock and 19t which is what I run most. Now for the MOD motors the GM has a very high continuious amp rate.
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