will da integra rear brakes bolt straight up to a 99 civic ex?

 

Yes they will work, but you will prolly need to retain your factory trailing arms and swap the whole hub/brake assembly. Here is a complete write up with pics and tools needed that I did a while back. If you have any questions feel free to ask. Thanks

https://honda-tech.com/zerothread?id=426445

 

why do i need to use the factory trailing arms?

 

I'm not sure if the EK and DA arms are different, but I always use my factory trailing arms when I do rear disc brake conversions. I've had a few sets that I bought that had bad bushings or bent arms that came with the swap, so I've always used my factory arms off of my cars

 

ok cool, ima read your article tonight, if i have anymore quesitons ill let you know.. thanks man

 

No problemo, just hit me up if you have any questions.