i need some sites that i can buy rear disc brakes for my si....it would be greatly appreciated

 

i can sell you the rear disc conversion from an integra and the proporting valve for 200 plus shipping

 

I got some from a 90 Si

 

You can get them from any rear disc Civic/Integra from what I've read.
You can swap out the trailing arm or you can use your stock trailing arms and just remove the 4 bolts that hold the drum on and replace it with the disc.

 

nice thanks