Ahh but there is a difference, for example in the Tesla part catalog with the 90 packs Tesla lists the packs by collums under headings describing the pack type. As you can see below for example looking at the last two collum headings “small -large” in reference to the larger performance motor “p-d non ludicrous” specifically for a performance dual motor car ordered without ludicrous, and the next collum over ludicrous s &x. See below
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as you can see some pack part numbers are coded specifically for cars ordered with ludicrous and some are coded for performance non ludicrous and some overlap. The data I’ve seen suggests that most non ludicrous cars that upgraded will only meet v1 ludicrous specs and have limits set at 1500 amps and 450kW output vs a car ordered with ludicrous that would have 1600 amps and around 500kW of power also known as v2 and v3 packs. However if you have an overlapping part number with the ludicrous colum it’s likely the upgrade will give you more then v1 power levels...
I suspect Tesla stopped doing these ludicrous upgrades around February of this year due to the software launch mode limits aka counter gate. Breif recap with 8.0 software Tesla introduced software that kept track of your cars launch mode and full throttle presses etc and used those counters to reduce your cars performance. I first noticed this in September 2016 on my 3 month old car as it lost a large chunk of performance after applying the 8.0 update. Almost 6 months later Tesla admitted this and in February 2017 Tesla rolled out part one of a software update to restore power to effected cars. Since Tesla said they would no longer control a cars performance via software they instead stoped sale on ludicrous upgrades and possibly started removing ludicrous from 90 inventory cars as well, as I recall reading on the forum...