You'll definitely rub, bump, bottom out lowered on 18s. You won't be able to turn your wheel all the way either.Theres one thing im afraid of when i drop it im afraid it might rub when i bit a bump or somthin or when i turn, it would help if they wernt 18s but still, any ideas guys
When I had the 17s on I had all of these issues.
As for a cheap DIY rear camber kit, I did this and it's been wonderful since. I was buying tires every 4 months. I haven't bought tires in 6 months now and they've easily got 85% life left now. Cost me $10
http://www.hondastreetculture.com/forum/showthread.php?t=50