thr33niL

I think I have wasted enough money now. I now have two headers that dont do the trick. Most know that with a B18C1 in an EG Civic that there will be about a 6 inch gap between the end of the header (collector) and the cat. In my hopes of not having to weld anything I went on researching for a header that would span the gap.

1st bit of advise had me buy a Type R header (aftermarket). It looked like it would work so I bought it. Well it wasnt quite right. The 2.5" collector doesnt fit well with a stock cat. And for some reason its alignment doest quite mesh since it tweaks my B-pipe to the passenger side about 2-3 inches. Its what I am running right now but it needs to be swapped for something better.

Numero 2, I was advised to get a B18B (LS, RS) header. That came in on Friday and before I took my existing header off I mocked it up and found a couple glaring problems. It seems to be a little short and the collector flange will not line up.

So what do I do. There has to be a header out there that will work for this common swap. I really want to avoid the muffler shop.

saleensolution

heres an idea.......................try getting a cat off of a integra to see if it will bolt up then. you cant do swaps without doing "some" modifying

egsleepercivic

JDM type r's have the 2.5 collector, I believe the USDM type r have the smaller collector and would bolt up to your exhuast. Was the length on the type r header correct and just the collector off?

thr33niL

Yeah it seems to fit but the collector is too big.. but it also seems to tweak the exhaust mid-pipe.