I currently have a JDM B18c GSR in my EJ Civic. The exhaust is a DC sports header with ebay cleared high-flow cat, and an Apexi WS2 catback.

I want to use the stock B18C GSR manifold and I was thinking maybe the Integra LS A pipe? Is there any way to use all OEM Honda components (Manifold, A-pipe, Cat) with the WS2 cat-back, and NOT have to do any customizing? Or am I stuck customizing a little even with the stock header/cat?

 

I'm still not sure, but from what I gathered:

A/My GSR stock exhaust manifold should bolt up to an Si "A" pipe, which should bolt up to a stock EX/Si catalytic converter, which should bolt up to my Apexi WS2 that I currently have on my 98 EX?

I'm thinking I might just pick up a B16 OEM manifold/A-pipe and a stock length test pipe or cat, and everything shoooould bolt right up with no modification.

 

I think you will soon become best friend with a welding shop.

Seriously, if you already have a DC sports header bolt-on to the engine, why would you bother yourself by putting an OEM manifold? Is there any issue with it? Does it works good?

 

to answer one question. no it works like junk its DC.

wow...does that search button allude you?

it'll just fine. why you don't just get stock everything is beyond me. an axle back ws2 is well simply for noise only.

 

Who pissed in Red Army's Cheerios? lol. It must be his poor grammar alluding him and hard-to-read sentences that is making him upset. FYI, I did search (a lot) and didn't come up with any solid answers. Besides people saying to weld it.

My exhaust is currently fully connected and working as it has been for years. I just want to throw a stock manifold/A-pipe/direct fit cat on, basically so I can have an exhaust that bolts up clean and straight. Also, the heavy stock manifold hides some of the engines valve tick, which is another main reason I want to switch.

So anyway, I just ordered a 99-00 Si 'A-pipe' and a Magnaflow Direct fit Catalytic converter. I think it will be just fine and bolt up straight and solve my exhaust seal/noise issues.

 

i don't think a b16 manifold will clear the oil pan the deck heights are different

 

I think it will. But, we will find out for sure before too long! Hopefully it shows up by the end of the week.

 

hah no one pissed in my cheerios. its just this is post 1 of 300 about fix my exhaust because i don't wanna do any thinking myself.

i wouldn't try to get a b16(1.6l block) to fit a 1.8l block. buy a gsr manifold with gsr piping and gsr muffler.

oh valvelash that engine tick. repair it don't cover it up.
search better next time. if you can't use advance search, which you should, use google.