This a Megan k20a2 downpipe. I have a 2004 ep3, can I even use this? This replaces the cat hence the sensor slots, correct? I was supposed to get a k20a2 megan header which fits the a3 from what I've read and was just going to use an OEM cat with a megan catback. But if I can't use this **** then I have to send it back. I suck with exhaust systems and this has me confused af.

 

BTW, here's the header I ordered: Megan Racing MR-SSH-AR02S

It even gives me the correct part # on the receipt. I want to slap whomever sent me this.

 

I would send it back because it's not the right part that you ordered.

 

Ya gonna have to. Just was planning on replacing the cat anyway so figured maybe I could use this.