Hey guys, I recently sold my 01 GT last week. Im in the search for a mint 03-04 cobra now. Here's my problem i sold my ZR saleen replicas to my brother and he put them on his sc300. They are shaking a bit at high speed. I told him to buy some hubcentric rings but i can't find out what the bore is. I have searched the internet with no avail. any help would be much appreciated they are 18x9 and 18x10

 

bumpp