I recently took my car in to the shop and they told me my exhaust manifold was cracked. I know the exhaust manifold is connected to the cat converter, but can it be seperated? The mechanic told me I have to buy a cat converter and a exhaust manifold because it cannot be seperated, but he didn't sound certain. Can someone let me know if I need to buy both or can I just buy the exhaust manifold? thanks.

 

I just replcaed my header, took ~ 3 hours, on my own, with no air tools or anyhting special. You can get a good one (header) for about $250-300.

 

What model civic? Some headers incorporate the cat.

 

it's a 2000 DX

 

92-95 Civic VX and CX - yes

96-00 CX, DX, LX - yes

01-05 DX, LX - yes




everything else..no

 

thanks.

 

I know that my on my 98 EX and 96 EX, it is not connected to the cat. Don't know if that helps. Just trying to participate more in this forum overall. I suggest the DC sports header. I think it is like around $300 from NOPI. It was easy to install. Getting the original one out was kinda a pain. Of course, I did have an automatic on the 98 model. Looks easier with the manual tranny. I think you have to buy the donut gasket separately. I cannot remember. You should probably replace the old one since it might leak and you don't want to have to take all that crap apart again.

 

I used my original gasket last night when I changed mine,a nd it seems ok, but I think I might have fubared the o2 sensor, I have a check engine light on now... Thats something ill solve tonight. It wasn't that difficult to change, but the damn Cat bolts were pretty siezed and it took a breaker bar to get them free.

 

I hear you on those bolts. Sounds like some weird animal call when you finally get those things turning too....hahaha