Does any other auto tranny Yaris owner regret not getting the MT?

[CrankyOldMan]

Originally Posted by CanIHazYarisHatch?

I just wish my 5 speed had a 6th gear.

Do you want to get even lower RPMs on the highway? If so, that's a "pretty easy" swap: change the 5th gear pinion and driven gears to those from an 03-07 Matrix. You'd be going from 0.815:1 to 0.725:1, meaning a decent drop in RPMs.

If you want the close ratios of a 6-speed gearbox, then the C160 from a Levin Trueno may be a workable solution, otherwise I'm considering picking up a salvage C60 for measuring and fitment tests.