Almost matching rims, Ooops!

I�ve posted before about the difficulty finding 10x18 et47 winter rear rims for my 03 4s. Last winter I incorrectly stretched 265/35 winter tires on stock 11x18 et45 rear rims and i was determined not to do that this winter. I finally found a used aftermarket turbo twist on ebay, bought it, and had it sent out to be refurbished. While it was being repaired i bought a second, new, aftermarket turbo twist rim and had it shipped from Italy. When it finally arrived i had my winter tires mounted and started driving. About a week later i happened to notice that although both rears are turbo twist 10x18 et47 rims, they look slightly different as shown in the photos below: ....and no comments please about the center caps not pointed at the valve stem!

Is one of them a hollow?

I honestly don�t know. The used one is the first photo, the one with the 2 circular indentations. It has this mark on it:

Thats the jwl stamp. Its "japanese wheel light" i think. All aluminium rims have it, not sure why. If they r factory rims the part # should be on the inside of the spoke

Neither has the 996.362.140.02 part number, i knew they weren�t factory rims. Factory would also have 10 and 47 on either side of the valve stem I believe.

If one happens to be hollow, would that impact how the car handles or feels? I�ve put at least 500 miles on these rims and don�t feel anything unusual.

If they r not factory i highly doubt one is a hollow. U could just weigh them even with the tire on there should be a couple pound difference. I doubt u would notice an issue if one was a hollow, it would just be less unsprung weight. May just be the difference between how 2 different companies copied the wheel.

It's easy to tell whether it is hollow since I am selling on CL a hollow spoke set and a solid spoke set. The solid spoke has the ribs on the back side of spoke and the hollow spoke is smooth on back side of spoke....hollow spoke is also about 3x as expensive for like condition wheels. If you are local to me, go to Seattle CL if interested in my sets.

Thanks for that info, based on photo from the eBay listing shown below its not hollow: I dont have a photo of the inside of the new rim but based on its price i highly doubt it is hollow either. I think i agree, different manufacturers just produced different looking aftermarket rims. Maybe 993 turbo twists had that look??

So i just went out a took a picture of my OEM wheels..here is what the hollow spoke and solid spoke look side by side....(hollow spoke has tires mounted) The hollow spoke is not as rounded on the rim and just has step down to the spokes. Never noticed before. The solid spoke seems more rounded and has the relief ring to emulate that of hollow spoke...again never noticed before....that is really the only minor difference i could see. Frankly as **** as i am, the fact that I didn't notice until you brought it up says if i were you I wouldn't worry about it.😊

LOL!!! Does your solid spoke pictured above have a "made in italy" stamp by any chance?

I believe you will find the "993" part number on the twist with the "ring" on it and a "996' part number on the one without. Both being the same solid wheels and Factory available on early 996 , the ring and the part number are the only difference..

Just looked at photos from a 1996 993 4s currently for sale on BaT with 18" turbo twists and yahtzee!, @Porschetech3 appears correct. https://bringatrailer.com/listing/19...carrera-4s-45/

if the fronts are the same as the backs I wouldn't worry too much (if they're only winter wheels). The fact that they're on opposite sides of the car means you can't really tell unless you run back and forth from side to side... You can always stay on the alert for matching ones and then sell the odd ones after...