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carrera III vs carrera II rims

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Still learning the ropes of this...did a lot of reading already but here goes...


I have a 2003 C2 NB  (996.2)


It has 18" 5 spoke rims (Carrera II's)...18x10 rear (65) and 18x8 front (50)


I noticed that the 18" 5 spoke rims from the 997 (carrera III's) are slightly different looking.  I"m trying to match up a set for my NB 996.


I've found a set of 997 from a NB:


18x10 offset 58

18x8 offset 57  


will these fit headache free and look normal on my NB 996?  

My understanding is that the 65mm in the rear vs 58 mm means the rim will be going into the car an extra 7mm with my stock....so my 58mm offset will be no issues?


if my understand is correct the the fronts which are currently 50mm will going to 57mm which means the rim will be going into the middle of teh car (towards the suspension an extra 7mm)....which means I need a 5 to 7mm spacer?

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