turbo twist wheel come factory with a 7.5" front??
 

my understanding is that a 7.5" should have been from a boxster or 996 and never was from 993

That is correct. The front 993 turbo twists are 8" wide for NB and WB cars.

I second the motion...
 

The 7 1/2 " hollow 18” Turbo I spoke Turbo twist wheels depicted and described on the enclosed pdf. If you don't plan on putting monster rubber on the front, these 7 1/2 hollow spoke wheels should work out just fine on a 993. Your local Porsche service shop will have the complete 986 technical bulletin.

When buying used wheels, always remove the tires from the wheels and inspect for welds and repairs (Don't ask me how I found this out the hard way). And be certain to spin the wheels up to be certain they are straight and true.

BTW Wheels America, Inc., I have used the Buena Park, CA store, will strip the wheel, true it if needed, completely refinish it to new, inside and out, for $129. That includes one (1) way UPS ground fright back to you.

TMI? Well let's blame the coffee.