2015 Subaru Outback

NewTuner98 · **Joined:** Sat Jul 19, 2025 9:06 pm **Posts:** 1

Hi everyone, I'm entirely new to tuning Subarus and with the Tactrix/Romraider setup. All I'm looking to do is turn down the cold start idle rpm value. I have a 2015 Subaru Outback 2.5 and have found contradicting info online. Can this ecu be tuned with this setup or not, and are there available definitions to do so? (It appears not, but I may just be missing it). Thank you all.

bludgod · **Posted:** Tue Jul 22, 2025 10:43 am

have you read the rom off the car to get the ROM ID from it? That will tell you if it's supported or not for sure.

throttlehappy · **Posted:** Tue Sep 02, 2025 3:46 pm

NewTuner98 wrote:

Hi everyone, I'm entirely new to tuning Subarus and with the Tactrix/Romraider setup. All I'm looking to do is turn down the cold start idle rpm value. I have a 2015 Subaru Outback 2.5 and have found contradicting info online. Can this ecu be tuned with this setup or not, and are there available definitions to do so? (It appears not, but I may just be missing it). Thank you all.

Yes they are tuneable though no public definitions for them

RomRaider

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