ok i bought my 97 civic lx about a year ago and slowly started to mod it and was going to put headers on it already had them ordered and delivered to my house the problem was that i totaled the car and decided that it was time for a change mostly cause i needed 4x4 anyways i still have the headers and was thinking about selling the on ebay but then my friend just bougt a 90 crx and i wanted to know if they would fit his car??? so thats the question will they fit directly or will it be better to just sell them on ebay... if it helps the headers were for a 96-00 ex civic but from my searching it looks as if they all are universal?

 

There is only ONE header on an inline engine, so don't pluralize the word header.

But as for your question, your header was designed for a D series motor, and if his CRX has a D series motor than it should fit... but I don't know what engine is in the CRX. There is a list of engines in the swap section that will tell you what motor his CRX has.