Ok, i got a civic LX, got a tower bar, the style like the 2000 Civic Si. It requires drilling those holes in the chassis with a 3/8" drill bit. On the Si, theres a bar there.
http://www.comptechusa.com/instructions/ins013.pdf

check that. That looks good and all, but i didnt get those 4 8mm nuts and the bolt pieces. On the civic Si, are those bolts integrated into the chassis, or does it use those 2 stud plates? If it uses those stupid plates, can I get those from Honda? Also, with the drilling, how much should I worry about the drill hitting the suspension, like the upper arm or the spring or ****? Anyone with a Si, can I get some info, like if you've upgraded tower bars? Thanks

Mike