Ok I have a 99 civic dx with Dx pace setter exhaust and I recently swaphed heads and have a y8 ex head and I bought ex headers but the downpipe does not reach the exhaust. Is this because its dx exhaust and ex headers. or can i get a Cat to connect the headers and exhaust or did I just get riped off cuz their ebay headers?

 

If your headers fit right on the block then its ok you can just add some pipe to your exhaust to extend it an you will be fine. An if the header did not fit perfect on the block then you got a problem, but if im not mistaken then they should fit perfect!!!