WHEELS - 2006 Porsche Boxster S
Front: 18x8 ET 57, Porsche Part# 987 362 136 00
Rear: 18x9 ET43, Porsche Part# 987 362 138 00
TIRES - Michelin Pilot Sport PS2
Front: 235/40ZR18 N3
Rear: 265/40ZR18 N3

http://cgi.ebay.com/ebaymotors/ws/eB...m=320107527436

Hey guys... I'm pretty sure this setup fits narrow body 996s... can anyone verify for me... THANKS!!!

 

That tire setup is wierd, 235/40 & 265/35 are a better match. The offsets looks pretty close on the inside of the wheel... I think you will end up with way to much space in the wheel well and not enough on the insides of the tire. Will look ugly!

The stock offsets are 50 front and 65 rear, its quite a bit of difference

 

That's the oem size for the Boxster S... slightly staggered overall diameter... hmm, thanks for the input!

 

The front would be too far into the wheel well.
Many add spacers to the stock 996 18" 50mm offset reducing it to 45 or 43mm to bring the wheel out toward the fender lip. The 57mm offset would be 7mm further in than the stock 50mm offset.

The rear is too narrow. 996 18" wheel should be 10" width, minimum.
As with the front stock fitments, many add spacers to the stock 18"x10" 65mm offset rears. I use 15mm spacers to achieve a 50mm rear offset.

Also, the tire profiles have the larger aspect ratios (taller sidewalls) of the 987/997 series. These may not handle as well, as 996 suspensions were designed for smaller aspect ratio rubber.