I know the tranny on my 4r is set up to be a more luxury vs sport shift, furthermore I know that I can have the valve body rebuilt, but short of that, if I take the valve body off a tacoma, would that give me a little firmer shift?
I think the average upgrade on the valve body is $500-600 and two main companies do them IPT is one and can't think of the other. No the Tacoma one will not change that shifting.