911 911 911 hp header help
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911 911 911 hp header help
I'm installing my header right now, and i bump into some problem. First off i have 03 civic ex manual, now i'm installing my hp header full w/cat. Why there like 3 o2 senser hole on the hp header but the honda only have 1. There are only 1 o2 senser. can anyone reply this ASAP Plz!
anyone plz help a fellow 7thgener out
anyone plz help a fellow 7thgener out
Last edited by 03CivicEX03; Jan 7, 2004 at 12:23 AM.
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Rep Power: 0 haha Yeah it do sound funny and smelly. i can get the nut from any hardware store right? Somehow the cat to header don't fit right, did that ever happen to you guys? I havea little gas leak between my header and cat is that normal?
Last edited by 03CivicEX03; Jan 7, 2004 at 03:40 AM.
no its not normal to have that leak between the header and cat... get a gasket or get it fixed somehow..
and the hp header is supposed to come with a nut to fill up one of the holes.. it came with mine when i bought it ....
but yea u can buy it at the hardware store np.
and the hp header is supposed to come with a nut to fill up one of the holes.. it came with mine when i bought it ....
but yea u can buy it at the hardware store np.
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Why is there holes in the header for an ex there no holes in the stock one well i have an 02 and there were no holes in the header only one on the downpipe and one on the cat underneath the car
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Rep Power: 369 u need 2. one before cat and one after. if u dont see the one after the cat I dont know then.
they probably gave 3 incase u need the one further up for the LX/DX.
if u can post a pic of the HP header with full cat it'll be good to make sure u have the right one.
cuz everyone had to shave/cut their motor mount to fit the header.. did you?
they probably gave 3 incase u need the one further up for the LX/DX.
if u can post a pic of the HP header with full cat it'll be good to make sure u have the right one.
cuz everyone had to shave/cut their motor mount to fit the header.. did you?
The Beez Kneez
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From: Und3Rgr0unD
Rep Power: 315 it sounds like a header for an lx or something not the ex. 
the lx or dx i think have 2 cats, the ex has only one but it has 2 honeycombs inside the cat!
if there was 2 cats then you would need 3 o2 sensors, if there is 1 cat then you'd need 2 o2 sensors. i think
lease:
the lx or dx i think have 2 cats, the ex has only one but it has 2 honeycombs inside the cat!if there was 2 cats then you would need 3 o2 sensors, if there is 1 cat then you'd need 2 o2 sensors. i think
lease: Last edited by acidbaby; Jan 8, 2004 at 04:19 PM.
Originally posted by acidbaby
it sounds like a header for an lx or something not the ex. the lx or dx i think have 2 cats, the ex has only one but it has 2 honeycombs inside the cat!
if there was 2 cats then you would need 3 o2 sensors, if there is 1 cat then you'd need 2 o2 sensors. i thinklease:
it sounds like a header for an lx or something not the ex.
the lx or dx i think have 2 cats, the ex has only one but it has 2 honeycombs inside the cat!if there was 2 cats then you would need 3 o2 sensors, if there is 1 cat then you'd need 2 o2 sensors. i think
lease: The Beez Kneez
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From: Und3Rgr0unD
Rep Power: 315 what do you mean i dont know. i think i am right. an lx header has what looks like a cat right off the header then another one at the bottom. right?
if you take off your ex catalytic converter, it is connected to the header pipe. then were it connects to the mid section of the exhaust there is the actual honeycomb that filters the air. there is about a 4inch length
then the o2 sensor then there is another 4inches of the silver honeycomb. i know what mine looks like because i gutted the whole thing. if im wrong then but if im right then 
oh and by the way i may not sound like i know what i am talking about but i did all my work myself. i would never pay someone to put a damn header on. LOOK AT MY PROFILE!
then look at yours I OWN YOU
if you take off your ex catalytic converter, it is connected to the header pipe. then were it connects to the mid section of the exhaust there is the actual honeycomb that filters the air. there is about a 4inch length
then the o2 sensor then there is another 4inches of the silver honeycomb. i know what mine looks like because i gutted the whole thing. if im wrong then
but if im right then oh and by the way i may not sound like i know what i am talking about but i did all my work myself. i would never pay someone to put a damn header on. LOOK AT MY PROFILE!
then look at yours I OWN YOU
Last edited by acidbaby; Jan 9, 2004 at 12:58 AM.
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Rep Power: 0 Yes!! i found a bolt for the extra hole. No i don't have to cut the motor mounts, but i have take one of motor mount off while i'm putting on the header. I have another problem... after i started it the whole car shake/rattle a lot..
The Beez Kneez
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From: Und3Rgr0unD
Rep Power: 315 yea alot of people have that problem dunno what it is....
maybe its because you are running so much horse power now i heard the hp can add up to 25 hp.
i just got a shorty megan racing header and gutted my cat i think it works just as good
maybe its because you are running so much horse power now i heard the hp can add up to 25 hp.
i just got a shorty megan racing header and gutted my cat i think it works just as good
Last edited by acidbaby; Jan 9, 2004 at 01:58 AM.
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Rep Power: 0 haha add 25hp lol. Serious it vibrate and shakes the whole car while idling and that is not good. I think my header is hitting agaist something in engine base it make rattle noise.
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Rep Power: 0 haha add 25hp lol. Serious it vibrate and shakes the whole car while idling and that is not good. I think my header is hitting agaist something in engine base it make rattle noise. Anyone have checkengine light turn on? Just wondering do my check engine light will turn off in coupe days?
The Beez Kneez
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From: Und3Rgr0unD
Rep Power: 315 yes your cel will turn on. no it will not turn off until you put the cat back on. man maybe you shouldve searched b4 doing this mod to findout what other people said. the vibration problem has been talked aout alot.
and if you didnt know about the cel you really should do some research b4 you go doing any more moddifications. its really good for you and your car, and beleive me it is very addicting!
oh and if it is vibrating that much and hitting something when it gets hot it is very likly it will crack... and that is not good
until you put the cat back on. man maybe you shouldve searched b4 doing this mod to findout what other people said. the vibration problem has been talked aout alot.and if you didnt know about the cel you really should do some research b4 you go doing any more moddifications. its really good for you and your car, and beleive me it is very addicting!
oh and if it is vibrating that much and hitting something when it gets hot it is very likly it will crack... and that is not good
Last edited by acidbaby; Jan 9, 2004 at 02:27 AM.
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