Same thing with the 2UZ-FE:
2007 GX 470 2UZ: Premium fuel, 263 HP, 323 ft-lbs of torque
2007 Tundra 2UZ: Regular fuel, 271 HP, 313 ft-lbs of torque
Seems a bit wonky that there would be any material difference in the engine tuning relative to octane levels for the Tundra vs. GX 2UZ and 1UR...
I'm wondering if it's due to differences in the air intake/induction system or exhaust. The Tundra certainly has a bigger engine bay and more room to route the exhaust, maybe it's just more efficient than the more cramped GX platform.
They are also offering GX460 tunes.....a couple of other people have had theirs tuned on this forum. I'm not aware of any 470s that have been tuned yet but am willing to guinea pig mine :)
YotaWerxTuning@gmail.com
I am probably going to get a YotaWerx tune package for my GX, with an 87 octane tune for normal use and a 91 octane tune for pulling our camper (when more power would be always nice).
FYI, I usually run Top Tier gas in almost all of our vehicles unless I'm in a pinch where I need fuel and only...
I ran premium in my 470 (different engine I know) during COVID when it was <$2/gallon. I switched to regular 87 when gas crested $2/gallon and the $0.50/gallon extra cost just wasn't worth it. My 470, when stock, did have slightly more power on premium and got slightly better gas mileage. I...