the spacers are shown in these installation instructions:
http://www.collegehillshonda.com/ins...odyspoiler.pdf
according to the instructions, they come in both 1 and 2mm varieties. Try sending a PM to
http://www.8thcivic.com/forums/members/6123.html <---that's our college hills honda rep. they should be able to let you know if the spacers are available and how much they would cost.