First off - what sort of uses do these tires need to cope with, what size tires are you looking for, and how wide are the rims that you're going to put them on? It's hard to recommend any particular tire without knowing this, as not all tire mfrs make every tire size in every tire model in their lineup. In any event, I would not be shopping at Pep Boys or any of their competitors for performance tires - they're really just mass-market retailers. I couldn't even find
Anyway, here's what I found so far.
The ZE-329 appears to be a forerunner, version, or offshoot of the tire that Falken sells under their own name as the Azenis PT722. Any tire with "Touring" in its name is not likely to feel very sporty to drive . . . kind of at odds with what you'd expect a Mustang to drive like. Deep tread does tend to soften cornering response, making the tire feel a bit sluggish about changing directions compared to something like the Michelins mentioned earlier. Red boldface formatting for emphasis mine, black boldface Falken's.
Originally Posted by Falken tire site
All-Season Premium Performance Touring
The AZENIS PT722 A/S is Falken’s first ultra high performance all-season touring tire. It has a deep tread depth and long lateral grooves that help prevent hydroplaning and provide stability in wet conditions. The asymmetric tread pattern provides even wear and excellent performance while the optimized construction ensures ride comfort is never compromised. Targeted toward luxury vehicle owners, the PT722 is available in 65 sizes in V, W, and Y speed ratings with diameters ranging from 16-inch to 22-inch.
You should know that Falken does have a history of over-billing the performance side of their so-called "performance all-season" tires (I've been there). So I don't trust what putting "high performance" first in their description of these tires may be leading you to believe.