You don't have an aromatase inhibitor present. Most times, this particular combination doesn't need it however. If you have experience with the combination, or experience with moderate testosterone or Dianabol usage and from this know you don't have particular sensitivity to estrogen (with regard to gyno) then there would be no real reason to add an aromatase inhibitor. If not having that experience, you could consider low dose anti-aromatase use such as about 1/3 mg letrozole per day. However, again, most won't need it with this combo.