The rears are likely et65 if they came off a 996. Boxsters like to be around et45-48mm, so you would need a spacer to make up the difference and push them outwards (e.g. 20mm). The back of the wheel will have the offset stamped, so just purchase a spacer that will get you to around the target range.
My 18 x 10's are et47 and I've had to tie back the e-brake cables because clearance is very tight.
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JGM
2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95
Last edited by jmatta; 10-28-2009 at 07:42 PM.
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