I cannot seem to find any universal seat brackets for 90-91 civic HB so I ordered NRG brackets for 90-91 crx to go with the NRG seats I bought will those brackets work and if not what modifications will have to be done?

 

I hope that you have better luck with your NRG seats than I did. After about 2 months I had significant bolster wear because the material is not very durable. Then the mechanism started to fail and the seat would not stay in an upright position. Overall, the quality was not very good. Hopefully these issues have been resolved and quality has improved.

I have Wedge Engineering brackets. They are well made and bolted right up. Sparco also makes a bracket. I got rid of my NRG seats and have Recaros with Sparco rails and Wedge brackets.