There are many things to consider when buying spacers. Those spacers will bolt on to Eg5 hubs fine. However, this doesn't mean the wheels will fit on the spacer.
The studs from the car will stick out of the spacer, especially with a 10mm spacer (which is pretty small). Lets say the stock studs are 30mm. This means that 20mm of the stock studs will still be sticking out of the spacer. Many wheels don't accommodate that kind of room.
Some wheels have holes between the pcd holes specifically to provide room for the standard studs to sit when using a bolt on spacer. Others dont.
Some wheels might not have these holes, but have a section of the hub area cut out, others dont.
Pictures probably explain this best. For example: we are looking for room behind these wheels to determine if a bolt on spacer will fit.
With these wheels, that 10mm bolt on spacer will not fit. As you can see, there is no room for the stock studs to sit behind the wheel.
However, They will fit with these wheels. You can see there is provisions behind the hub for the studs to sit. Both wheels have holes that go through the wheel for the standard studs to sit when using a bolt on spacer.
This is why wheels like CPR have the extra 4 holes between the lug holes. Its to accommodate a spacer.
Some people put a bolt on spacer on their stock studs, then cut the stock studs so they can fit any wheel. This is NOT recommended - it will mess up the threads on your studs, and if you do finally get wheels that are the correct size and offset for an aggressive stance without a spacer you will have to get new studs.
Hmm long post, got carried away. Hope it helps. Check your wheels first before buying a spacer.
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