Tactrix openport 2.0 subaru sti3/12/2024 ![]() ![]() ![]() ![]() Generally I would tune V7 cars on a Prova Access Port and then once I had the tune dialed in, I would deal with the headache of flashing the ECU with open source. They will only work with the later V7 ECUs though. For V7 ECUs I greatly prefer this option due to the lack of headaches. They generally do not brick though and you can access and modify all the maps.Īlso, if you prefer Access Port tuning to open source, Prova makes Access Ports for JDM ECUs identical to the Cobb Access port. (IE the dome light comes on or off, changing the radio station). If there are any power fluctuations while you are up or downloading data the transfer can and will fail. The later V7 JDM ECUs (2003-4) are also very touchy. And I use technically loosely, they are extremely prone to bricking and the tunable maps are very limited. (The ones you can actually tune)Įarly V7 ECUs are technically tunable without a jumper. ![]()
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