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  1. Troubleshooting suggestions... LTFT adding a lot at idle, pulling a lot while cruising

    General Subaru Discussion
    I finally built my baby. I have an 07 STi that I built (head gaskets blew and consumed a quart of oil every 300 mi) and after a very bumpy road of dealing with "knock" during engine break in and troubleshooting, I finally tuned perfectly on 93 octane. I put one tank of E85 and it felt amazing...