Hi, I'm new here but A member of ROe(caraudio) I have a set of HP Racing 4-2-1 header, I cracked the 2-1 part, its done. Its for a 89 crx. I'm hoping someone has the bottom half of a header. The 2-1 part. Are they all interchangeable or does it have to be the same brand. All help appreciated. I'm pretty new to this, but excited and learning :0 So if you have it, know where to get it, or know what to do PLEASE let me know. Thanks, Joe