Originally Posted by reyoasian
if it's already calibrated under your car then no need to calibrate again (beneficial to do so but not required)
your new one is the 2012+ actually
According to sewell, the 2013-2014 steering ECU part# is 89650-53042. The 2011-2012 is 89650-53041. The OP is selling the 2008-2010 unit, part# 89650-53040, which is a nice upgrade to any ISx50 car.
Originally Posted by zebani
Honest question here, what difference does this make?
"For the ISx50s on PWR mode, we only get the throttle sensitivity and aggressive shifting benefits. When you swap out the ISx50 Steering ECU with the IS-F version, not only do you gain the extra firm steering when you set the car to PWR mode, the VDIM Sport setting from the IS-F is also available! On specific corners that used to cut power for me with the ISx50 Steering ECU, I can now tackle those same corners with little to no nannies kicking in thanks to the updated IS-F Steering ECU.
I can also confirm all the other benefits mentioned by the others in regards to significantly improved steering feel, less steering assist, more confidence on what the tires are actually doing while you’re in a corner, and that PWR mode firms up the steering wheel even more."
Good luck with the sale, this is a nice upgrade for anyone who cares about feel and better driveability.