Although the 331's may be a tad too much. I can't even imagine having 3.73's in my 13. I would think you would need to have heated up drag radials to even cruise around. I personally like the 331 and having long gears, with over 600 lb of tq you need to "ride it out" and use its potential rather than shifting before your even getting to use all the tq the motor has. I would think a 3.55 would be maybe the "perfect gear" for these cars. To the point id take a 331 over a 373 in these cars for street or drag racing all day, I'd bet 8/10 times the 331 would beat it out as well, the 331 may not pull and "feel" as fast, but IT IS
Not true. At all. I have 3.73's and they're not steep gears at all, and they don't require heated up drag radials to be able to cruise around. Matter of fact, I have the STOCK tires on my car temporarily and have driven in 50 degree weather. Don't get me wrong, you have to use your sense even with the 3.31 gears on chilly roads and stock tires.
But a 3.73 in this car is not a "drag racing" gear, nor is it too steep. The PP 2011-2012 cars came WITH a 3.73 rear from the factory. Even a 4.10 gear would even be tempting because with 3.73's the gears still feel "long".
A 3.55 wouldn't be much different than the 3.31 and probably wouldn't be worth the time/effort to install.