Is there a way to add another subtotal module, that would show price without tax?

On checkout i now have

Subtotal = 12
tax = 1
total = 12

I want

Subtotal = 12
Subtotal without tax = 11
tax = 1
total = 12

I have duplicated ot_subtotal module and language file, changed subtotal values to subtotal1. They are shown in the admin panel, but not on checkout page.

Tnx