Also i would like too add, OVTUNED is awesome. Best mod you can do hands down. I wish I'd splurged on the 16. I flashed it to the trk 3 weeks after i bought it. As far as i can tell Toyota can't tell it's been flashed to the ecm. 91 base...the way it should be! OV tune is working on 2.0 which will adjust to any octane you run. Guys are running beta now.....IT WILL BE BAD ASS!!!I drive a min of 2hrs a day. At least its all highway miles! I can promise you...i like my truck or id be in something else! LMAO