The A Spec is for the RSX so to install it on the EP3 it needs grinding down to size on the rear bushings to fit the rear arms
That's what I mean, you can replace the bushings....but if you would like to press out the old bushings and press in ones that fit the ep3 properly, you will need 2 of these.. Part number is 52622-S5A-004
NOTE: This is OPTIONAL. If you have the available resources then I say go for it. It will add about $20 to the parts list, and i'd imagine you would have to find a shop locally that would be able to do it, but for those that are 'scared' to grind down the rears, here is your alternative.