The Furman isn't always the best choice, it's noisy like a fish fry. Try the tc1140 I think it's called, or the Audio Arts Engineering unit, Rane made one, Loft made one, probably a few others as well. Or, if you must have a pedal, there's a parametric Ibanez 9 series or the BOSS PQ4. I have all but the Rane and the tc ,the rack units are awesome, the pedals will do in a pinch. Great for the whole 80s LA hairmetal thing. Trust me when I tell you, all of these boxes will do that sound, there's no special sauce with the Furman, the Furman is expensive because of the Dimebag guys. I actually prefer the Audio Arts and the Loft, they're not as noisy.
Honestly, the parametric before the amp cured most of my amp GAS and pickup GAS too. The final icing on the cake (for me) was sticking a half rack graphic EQ in the loop with the parametric out front, it's easy to dial in almost any sound and change the feel of the amp dramatically with these two things. In fairness, I also use a half rack noise gate in the loop to tame any hiss as well. I tend to use an old Rockman half rack EQ and their Smartgate, but Boss made a great half rack EQ and gate that work well also (the black ones, the Professional series, like the SE50 and SE70).