Matching up RH/Exhaust

[Bryan144]

:ephatch: What's up everyone! Well I guess going with a turbo build kind of got put to the side and now I'm considering a RH and Kpro for the 05! I'm looking at a DC Race Header (Not really sure why everyone says it isn't good? Maybe someone can post that information) I don't have 800.00 for S2 or BC lol but anywho I have a Greddy Evo2 exhaust (pretty sure... it came on the car and looks just like the Evo2 lol) So my question is how can I find out of the DCRH or any race header will bolt up to my catback exhaust without modifying it?

Kind of a noob question I suppose but any information would be much appreciated. Thanks! :hay: :hay:

[Yomimito]

buy a Obx RH, is cheaper and quality is not that bad. I have one for almost three years without problems. if your exhaust is specific for ep3 and is not modified, must match perfectly with this header.

http://www.ebay.com/itm/OBX-SS304-4-2-1-Header-2003-2005-Civic-Si-KA20D-2002-2007-RSX-Non-Type-S-/390485443281?pt=Motors_Car_Truck_Parts_Accessories&hash=item5aeabf02d1&vxp

[Bryan144]

buy a Obx RH, is cheaper and quality is not that bad. I have one for almost three years without problems. if your exhaust is specific for ep3 and is not modified, must match perfectly with this header.

http://www.ebay.com/itm/OBX-SS304-4-2-1-Header-2003-2005-Civic-Si-KA20D-2002-2007-RSX-Non-Type-S-/390485443281?pt=Motors_Car_Truck_Parts_Accessories&hash=item5aeabf02d1&vxp

I'll probably order one of those then. Is it possible to get a piece so I don't have to see a CEL?

[Yomimito]

you can buy an extension for the secondary oxygen sensor. this will prevent the CEL for no cat. You need to be careful when removing the primary oxygen sensor, is very fragile, mine got damaged when I changed my header.

one as this:
http://www.ebay.com/itm/Oxygen-sensor-HHO-extension-HYDROGEN-spacer-Test-Pipe-O2-M18-X-1-5-thread-size-/261119456789?pt=Race_Car_Parts&hash=item3ccbeeb615&vxp=mtr

[Her-Name's-Ally]

I have a DCRH its quiet, I like it. Picked it up for super cheap so I said what the heck might as well try it. Feels great to me. you will need a defouler to run no cel. Try the angled defouler may work better.
As far as 02 sensors, Unclip take off cat, unscrew and put on RH then plug in after install and you will be fine. there is a DC RH not to far from you on CEP3 for 120 picked up. have a look on the F/S section.

[Bryan144]

Not a bad price but I'm not really big on the condition of it :/ I'm going to pick up an OBX sometime soon and order the o2 extension and hopefully everything will work out alright haha and I'm finally convinced on Kpro so the EP should be seeing some goodies soon :)

[black05ep]

I have a ceramic coated dcrh i got for 180 from someone on here. I love it. Runs no cat through my sk2 exhaust.super loud but good tone.

[Her-Name's-Ally]

Good work keep us posted. interested in obx gains ive heard mixed reviews

[Bryan144]

I really don't like the flex piping the DCRH has I've heard it get's busted up pretty easily so OBX it is !
I'll probably get a dyno as it sits:
DC shorty header
Injen short ram
Greddy Evo2 Catback

and then compare it to:
OBX RH
AEM CAI
Greddy Evo 2 catback
Kpro

[black05ep]

My dcrh flex pipe is fine. It was fine when i recieved it.

[Bryan144]

Yea I mean I guess it's just a chance like anything else. I'm not saying they are bad quality but I have seen a lot of threads about it

[Yomimito]

that would be interesting.



I really don't like the flex piping the DCRH has I've heard it get's busted up pretty easily so OBX it is !
I'll probably get a dyno as it sits:
DC shorty header
Injen short ram
Greddy Evo2 Catback

and then compare it to:
OBX RH
AEM CAI
Greddy Evo 2 catback
Kpro

[Bryan144]

that would be interesting.
lol I suppose it could be? I'm sure i'll see significant butt-dyno gains!!