K&N or BMC CDA and fitment?

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 12:24 pm

I've just fitted a K&N filter and just wondering how much better a CDA is and if its worth it. Here's a pic of my K&N I fitted a couple of days ago.

I've been looking up more and more and finding CDA have quite high reviews.

If I do chooes a CDA will this come with everthing I need:

http://www.kamracing.co.uk/manufacturer ... on-18.html

and is this an ok price, looks ok to me

and is this the right one for a 1.4 8V. And am I right in thinking I will need two breather filters and if I do what size do I require.

Any help and advice would be great, thanks

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 12:27 pm

Just noticed a 1.4 one, so changed the link. This one comes with bend and one breather filter. But when I connected my K&N and had two hoses going into the filter?

Will I need another breather filter?

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 12:41 pm

Or if I order seperatly what do I need, is this right:

The filter:

http://www.kamracing.co.uk/manufacturer ... t-406.html

63mm bend:

http://www.kamracing.co.uk/universal-it ... d-105.html

Two breather filters: (unsure on size though?)

http://www.kamracing.co.uk/manufacturer ... r-112.html

stani540 · Post by **stani540** » Wed Dec 17, 2008 12:57 pm

I'd definitely recomend the switch to bmc its nowhere near as loud as the k&n which sounds a bit like a loud fart, no offence i thought it sounded awesome while i had it, changed my mind when i wen bmc.

dont be put off by the lack of noise it grows on you and sounds so much better i burried my cold air feed in front of the battery and the sound reverbed in the wing and sounded awesome, like there was alot more than a 1.4 8v under the bonnet.

i put my own kit together mate for under Â£100

i used to have the same car as you and had the k+n to soon you will notice it will start to fill with oil! you need to hack apart the old airbox and cut the one way valve out of it so it lets air in but no air/oil out. theres a pic of it below as i took mine out, otherwise your engine will spit all the oil out and no oil isn good

i think it goes on the breather that goes into the right side of the k+n

you are right in saying you will need another breather for the cda but they can be picked up of ebay for cheap.

You need:

CDA 70 - 130 i think
Silicon Reducing Elbow 70-50 (90 degree)
Suitbale jubilees

The way i did mine i order a silicon coupler think i got a 68mm one as it does fit on the bmc and attached my k+n cold air feed to the bmc with jubilee clips as the k+n hose was pretty good and looks good to.

i also made a bracket out of a few fixings i got from focus diy.

here are some pics of mine below:

after and engine bay tidy up

id really recommend a bmc there awesome, but id sort that brerather out first before your engine start spitting oil which i bet it already has!

got any qs just pm me

stani540 · Post by **stani540** » Wed Dec 17, 2008 1:03 pm

also i wouldnt route the cold air feed where i have in the photos as it rubs on the radiator hoses and they can burst hence why i moved it to behind the battery

so basically what you need is:

BMC CDA 70-130
70-50mm silicon elbow
68 or 70mm coupler
jubilee clips
cold air feed which you have
19mm breather for the larger breater as i used k&n attachments to attach them so you may want to do it differently

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 1:16 pm

cheers for that mate. On your pics with the BMC your breather filter doesn't seem to have the one way valve. Is it not needed if I get the BMC with two breathers.

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 1:17 pm

Just ordered one!

50-70mm bend.

12 mm breather

20mm breather

and obviously the filter

Does that sound about right?

stani540 · Post by **stani540** » Wed Dec 17, 2008 2:12 pm

lolhoward wrote:cheers for that mate. On your pics with the BMC your breather filter doesn't seem to have the one way valve. Is it not needed if I get the BMC with two breathers.

that was before i changed it to the one way one which you need to do unless you want your engine to run out of oil

you only need the one breather and thats 19mm presumming your going to use the kn adapter plug to attach it

just noticed your selling your k+n kit so probably best to get a 18-20mm filter with a joiner to mount it to the tube

so all you need is the one 18-20mm filter, id use the ebay one above as its cheap and i presume you will have gone for blue hoses? and a few jubilees also

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 2:21 pm

You have two in your pics? So you have the small pipe which you place the one way valve on and what do you do with the larger one then?

stani540 · Post by **stani540** » Wed Dec 17, 2008 2:24 pm

right i m getting confused you actually need a 19mm breather and hose joiner not a 12mm

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 2:26 pm

Sorry mate.

You have two pipes

one 12mm and one 19mm.

Do you need a breather filter on each?

stani540 · Post by **stani540** » Wed Dec 17, 2008 2:28 pm

http://cgi.ebay.co.uk/19mm-ENGINE-BREAT ... 240%3A1318

id got for this u need the joiner

stani540 · Post by **stani540** » Wed Dec 17, 2008 2:31 pm

lolhoward wrote:Sorry mate.

You have two pipes

one 12mm and one 19mm.

Do you need a breather filter on each?

sorry im confusing you

you need one breather of 19mm as i just posted above

the other breather needs to be cut out of the exisiting airbox/engine cover

what you need to do is unscrew the airbox off the bottom of the engine cover take out the filters and you should see the bit im on about!

then for looks sake chop the back left mounting leg off the airbox and screw it back to the engine cover then you can trim your engine cover around your cda to get a neet finish like mine and your ignition leeds look better that way!

stani540 · Post by **stani540** » Wed Dec 17, 2008 2:32 pm

first pic i psoted shows the breather filter at the back and the one way filter at the front, after i realised it needed this

lolhoward · Post by **lolhoward** » Wed Dec 17, 2008 2:33 pm

The BMC ones I have gone for state they fit inside of pipes **mm. So I'm wondering if you would need an adaptor and if they just jubilee clip straight on?

So what do I do with the small 12mm pipe?

Sorry about this mate, but thanks for help