So I have a h22a JDM spec engine in a 94 Honda accord coupe and I'm trying to source a full exhaust .There is no issue trying to find a cat back exhaust that's easy , but every time I go to look for headers I get a warning that I mite need to notch my front cross member or get a aftermarket one. Any direction would help , any brands are fine its a 4-2-1 style header.
(its a cd8)

 

Any H22 Header built for a newer Prelude will fit, the CD Accord chassis were all designed to fit an H22 engine and exhaust without modification to the chassis. You may need to modify the connection between the header and the cat back exhaust however.