Headers for D16?

[sohc_ma_vtec]

Hey there anybody no wer ta get decent heders for my D16 Sohc!
Pleeeeeeeeeeez help!:wave:

[TheSaint]

http://www.xforce.com.au/cars/view_car/19

[dougie_504]

I recently passed on a set of 4-2-1 2.25" Genie headers. I've sent the guy an email with a link to this thread. If they're still for sale he might get hold of you. Good deal.

[UHC292]

PM sent, thanks dougie

[dougie_504]

nw mate :)

[02gzm]

Aren't most D-series headers all copies of each other anyway? Just get any you can get your hands on. The power variance would be minimal

[sohc_ma_vtec]

thanks guys! n fanks for not bein diks bout it! peace!

[dougie_504]

Thanks? Dude you have to tell us if you bought a pair! Did you get them Genie 4-2-1's?

Where you from anyway?

[sohc_ma_vtec]

hey i should be getin sum in a week or 2 ill post it up wen i get em! im from south east area!
i got a price from xforce they sed $480! wata u guys rekn worth it just for ma sohc?

[dougie_504]

Not really. 2.25" I honestly think is took big. I suggest looking around for 2" as you'll lose too much backflow and end up with no low/mid range power.

And since you're not going to get good gains from the SOHC I'd suggest budgeting to about $250 max. Honestly if you get ebay headers you'll flow better ---> the stock headers on the D16Y1 are so shit you wouldn't believe it.

Check out my thread here (http://www.clubcivic.com/board/showthread.php?t=174646&highlight=Flowtech) where you can see the difference.


So no, I don't think you should go XForce. They're a good deal and good quality but it's just not worth it for the gains you'll get (or lose, since they're 2.25" I believe).


Go for 2" at around $150-250.

[02gzm]

I'm with dougie on this one.

[DRM417]

yeah dude there is a cheap set from eBay my mates have them sound pretty good too
check out eBay search d16 extractors ciao

[sohc_ma_vtec]

thanks guys much apreciated and thanks dougie for all da info bro!

these are the ones i first lookd at and are more in ma price range

http://cgi.ebay.com.au/CIVIC-EG-EK-CRX-1-6-D15-D16-STAINLESS-EXHAUST-HEADER_W0QQitemZ160372782714QQihZ006QQcategoryZ130 631QQcmdZViewItemQQ_trksidZp3286.m7QQ_trkparmsZalg o%3DLVI%26itu%3DUCI%26otn%3D2%26ps%3D6

[dougie_504]

The N*Power ones look good and will flow better than stock. Did you check out that thread I made clubcivic.com? The stock headers look terrible and probably flow like they look...not good at all! Anything flows better than stock, and they look great.
Don't get anything too shiny though, they'll lose that lustrous appearance at soon as they start getting regular use. I'd say avoid the chrome looking ones and get one off those darker, duller colours unless you wanna clean and polish it all the time.

Don't forget to source a high-flow catalytic converter and 2" cat-back, otherwise there's no point having headers as the increased flow will just get restricted again further down the exhaust.

Otherwise the only issue I have with N*Power's stuff is that they don't seem to advertise the outlet size of the header (the diameter of the single pipe at the end of the header). You want it to be 2" as previously discussed. Maybe send them an email and ask how wide they are and if you can get them in the darker colour of those 2 advertised.

While you're at it do me a favour and ask if they fit the D16A8 DOHC non-VTEC engines :D

[sohc_ma_vtec]

yeh i read the clubcivic link fanks again was realy helpful! n i have seeen ma stok headers fkn yuk lol... i like the crome header look tho but thats just ma opinion.
ill msg em 2nite! oh n bout da catbak im getin 1 through a m8! :)

[dougie_504]

All up to preference in the end. Let us know how it goes :)

[sohc_ma_vtec]

hey dougie they sed the outlet size is 2" :)

and YES the will fit ur D16A8 DOHC non-VTEC

[dougie_504]

ooo nice ta :D

[sohc_ma_vtec]

yo dougie i got ma headers tehy aight but i do neeed a catbak! im doin bit ba bit! i notice ma revs kik in faster to. oh n they chang colour da 1st day!

[EK1.6LCIV]

npower ones arent half bad, still on a car atm and it's been over 3yrs with no problem, was modified to add a flexijoint to the cat and a new flange made

as they are a 4-2-1 design and the vibration alone would cause havoc to bushings

4-2-1 to s/s cat back to resonator and into a muffler all 2" piping (don't get over fussed about mandrel bends, a press bent system will perform just as well on a small engine with little to no gains in comparison) will have it sounding and going very nicely

[dougie_504]

Yeah the heat will change their colour, you can't help it :(

[EK1.6LCIV]

I'd wrap them or paint em up, mine look bad in their dirty s/s state lol

[dougie_504]

What kind of paint would you use? Crinkle paint or something? Would need to sit well with extreme heats and I don't really know anything about that...

sohc_ma_vtec how much did it cost to get them to your door? Got a picture we can see?

[will13]

just hijacking this thread quickly...for an EG5, d16y1...what size high flow cat would i need if i was to fit n*power headers? I have a stock cat with a 2.25" pipe

[dougie_504]

2.25" is fairly big. 2" would be better. I think about 3" for a cat would be a good fit, but once it hits the cat-back it'll depend on the size of the piping anyway.

[EK1.6LCIV]

What kind of paint would you use? Crinkle paint or something? Would need to sit well with extreme heats and I don't really know anything about that...

sohc_ma_vtec how much did it cost to get them to your door? Got a picture we can see?

use just a clear on them or header paint in silver, blue, orange, red or something

[will13]

2.25" is fairly big. 2" would be better. I think about 3" for a cat would be a good fit, but once it hits the cat-back it'll depend on the size of the piping anyway.

So should the cat be bigger than the pipe? Is there a rule of thumb for cat sizes vs pipe size?

I'm about to grab some n*power ebay headers although im not sure about the outlet size on them. I doub't il be changing my pipe size.

[dougie_504]

If you go 2.25" front to back you might lose your low-mid range power and start to feel sluggish. You'll certainly feel the same (at best) or slower (more likely) off the line than if you went 2".

I'm not the best on cat sizes but I think 2.5"-3" will suit your 2.25" setup.

As for N*Power's outlet size just give them an email and ask ----> then post here and let me know!


Good luck!

[tsg88]

I am thinking of doing this to my D16, it goes well enough at the moment, but my sisters pulsar has extractors and a sport exhaust, and it sounds really nice. Once I get my new stereo and wheels I'll start upgrading the car mechanically. At the moment I just have to convince my boss to back pay me early, he owes me about 2k for side work!

[beeza]

The cat NEEDS to be the same size as the rest of the system,so U have a 2" system,2.25" system,2.5" system etc

Everything needs to be the same size to work properly.

[dougie_504]

That beeza for clearing that up for me. So I gotta get a 2" cat and 2" cat-back to mate to my 2" headers on my D16Y1?

Thanks!

[beeza]

Yup exactly! Having different sizes will upset the flow!

Your welcome.

Here's (http://www.ozhonda.com/forum/showthread.php?t=76097) my 2" system still going strong,no changes,just 5 repairs to the headers,mostly replacing gaskets where the 4 meets the 2.Now it's double gasketed.One time it had to be filed flat at the same place,cause I bent it.That was on the Ozhonda annual cruise day lol but it only cost me $100! :)

There's some vids in the youtube link in my sig - See how the y4 auto with a 2"system performs :)

[dougie_504]

I've never seen an after market 2" cat for sale - do you know where I can source one when I'm back in AUS or would it be best, in your opinion, to have one made up when I get the cat-back?

And I thought you said your setup was all 2" but the muffler is 2.25"? Or is that fine because you're going from smaller to larger, as opposed to going small to high to small (IE 2" to 2.25" to 2")?

And why have you been repairing your headers? <lol> Car too low/scraping?

My EH9 isn't really lowered (it's my daily driver) so I have plenty of clearance :)

[beeza]

O,true,it is 2.25",from memory I dont think there was a 2" twin.I think being the muffler and like U said going from smaller to larger on the exit point,it wont matter much at all.

From memory I think that was the case,does anyone know if that sounds right?

$147 delivered Magnaflow 2" hi flow cat (http://cgi.ebay.com.au/high-flow-magnaflow-cat-2-2-25-2-5-2-2-1-4-2-1-2_W0QQitemZ170399561852QQcmdZViewItemQQptZAU_Car_P arts_Accessories?hash=item27ac9af87c) -it's ceramic core though.

Or try 999automotive on here,they stock 'magnaflow',U should be able to get a 2" metal cat from them.One with a metal core.

Yeah,my car car isn't too low,it was 1 finger gap at the front and 3 at the rear with the old shocks,and cause they were old and lost thier firmness,I bottom out a few times,but the front under strut bar protects the headers but also it has whacked the headers and made a lil' flat spot..

Now the new KYB gas shocks are in I should be right! So much firmer,no saggy,slopiness.

[beeza]

I'm buying one of these now - A 'H Brace' that will solve the smashing up of the headers problem.

Should improve handling too,I reckon.Fingers crossed :)

Remove the old ebay crap bar that's all smashed up lol and put in THIS!

http://i99.photobucket.com/albums/l287/beeza2/Hbrace-1.jpg

[will13]

If you go 2.25" front to back you might lose your low-mid range power and start to feel sluggish. You'll certainly feel the same (at best) or slower (more likely) off the line than if you went 2".

I'm not the best on cat sizes but I think 2.5"-3" will suit your 2.25" setup.

As for N*Power's outlet size just give them an email and ask ----> then post here and let me know!


Good luck!

ok so i just got a reply regarding these

http://www.nahux.com/NPOWER/product.php?part_no=H-D16

inlet is 1.5"
outlet is 2"

anyone got any experiences with them?

Based on what i've read so far, this would mean i should get a 2" cat, even though i have a 2.25" pipe

[TheSaint]

are these a direct bolt on to stock D15b7?

thinking of getting a set to clean up the engine bay a bit

anyone got pics of the color after a bit of heats been through them?

[dougie_504]

Depends.

If you install them and immediately wash them with some hot water/detergent before you run the car/heat them up then you'll be able to remove some of the oils that your hands will deposit on the headers - which stain when heated repeatedly.

The ceramic coated headers I put on my Civic have just gone slightly hazy on the side of the individual tubes that face one another and therefore share radiant heat.

I'm not so sure about lustrous headers but my RS*R headers on my CRX (quite old I imagine) used to be a copper-like colour and are now quite faded, dirty looking and ugly lol

[TheSaint]

i would actually prefer the copper color from chrome ... i really dont like chrome but it seems thats the only color the cheap ones come in

tossing up wether to clean up my OEM manifold or get some cheap headers

[dougie_504]

Get after market because the stock civic headers are restrictive as hell and anything new I reckon is better. 2" ftw.

[TheSaint]

damn its hard to find cheap headers for D series that arnt chrome =/

[dougie_504]

Most companies offer different colours though.

I got lucky and picked up a set of Holley headers (made for Honda under a different company branch) which are ceramic coated for like $199. 2" also. Didn't realise I'd gotten such a good deal until I'd done my research.

Have you considered N*Power?

[TheSaint]

yeah looking at them on ebay

will they bolt up to stock car? how does the chrome look after being run in?

[dougie_504]

Don't know mate, I think it depends on their age, how you treat them etc.

IMO ---> "Say no to chrome"

[TheSaint]

yeah i would rather stay stock than have chrome haha

there are some stainless ones floating around in the states

[dougie_504]

Stainless or ceramic coated :)

[hitoriko]

http://i82.photobucket.com/albums/j250/hitoriko/2011-11-19182459.jpg

Is this the colour/condition you mean?

[ekx105]

Thread revival!!

so im looking into getting a N*Power Headers for my Ek civic. I just want to know will i need to get a cat or
anything else to complete the install.
My Eki is CXi and the engine is bone stock (d16y8) apart from a K&N Apollo Cold Air Intake System.
And im also running a Spoon N1 Axle Back.

Will i have any issues with install? or would it be direct bolt on.

any help/answers would be greatly appreciated.
Neil

[dougie_504]

Check your other thread.

[subie]

sorry to dig this up but...

are they any difference between manual and automatic?

header from manual car fit auto?

cheers

[ktran]

Nope, both the same

[subie]

Nope, both the same

Thanks

cheers