1995 T-5 Tranny question

i done the swap in my car ( price reasons ). i heard the cobra t5s have phosphate coating on the gears. not sure if this is true. dimensionally, i believe they are identical. :shrug:
 
I believe it was intended to increase the power handling capability. Not sure how it would though? It's still the same gearset as the standard WC T5, but have a phosphate coating, so the properties of the aluminum didn't change any.