As title:

Should I bother with a K&N etc for a relatively shallow breathing diesel?

Depends why you want it. If you do big miles, it'll work out cheaper than replacing paper filters every 10k miles. Performance-wise and economy-wise you probably won't notice any difference at all, but you may get a little more noise....

Chris

I did a load of research on this and IMHO reckoned that a K&N would be best (performance/filtration/availability) and bought one. There are a couple of threads on here to search. I looked for an induction kit but it seems that no-one has developed one yet.

Does it give me any better performance? Hell I don't know, but I feel good about it (have had a K&N or similar in my last 4 cars).

You will need K&N 33-2865 - AwesomeGTi usually have them in stock although I got mine from Demon Tweeks (being a long term customer of theirs).

PS> For the BEST filtration/performance gain I wanted to get an APEXi filter but these, in panel filter replacement, are for Japanese cars only. I have thought, and still am thinking, of getting one of their universal cone filters and developing my own induction kit; but haven't got round to it yet.

Not that bothered about service issue at the car is under the free servicing regime for the first 3 years.

Don't GSF do K&N aswell?

(I think you also get a louder induction noise)

Not that bothered about service issue at the car is under the free servicing regime for the first 3 years.

Don't GSF do K&N aswell?

(I think you also get a louder induction noise)

Skoda will only change the paper filter every other service IIRC (~40k miles) so a K&N which is cleaned every 10k will offer better filtration than a clogged paper filter at 10k. However, if you replace the paper every 10k everything will be about equal.

Induction noise is a marginal increase (and I mean marginal!)

Chris

Certainly no change in induction noise with a replacement panel filter, remember its sealed in a box.

Only ever had 'induction roar' with open conical filters.

I go for a stainless steel induction kit from Powertec if they make one for it than a K&N or equivalent, as the stainless steel ones don't need oiling. They make a unique noise too

Skoda will only change the paper filter every other service IIRC (~40k miles) so a K&N which is cleaned every 10k will offer better filtration than a clogged paper filter at 10k. However, if you replace the paper every 10k everything will be about equal.

Induction noise is a marginal increase (and I mean marginal!)

Chris

On the MK II TDI's I believe the service change interval is 60k miles...

Personally I get it changed every service or sooner.

This thread got me thinking again about an induction kit for my Octy.

Knowing I like K&N I did some more research on their website and found (I'm sure it wasn't there a couple of months ago) that they do one of their 57i induction kits for the Octavia 2.0L L4 DSL (TDI), part number 57-0618, details here:-

http://knfilters.com/search/product.aspx?Prod=57-0618

Having looked at their .pdf brochure of the 'Installation Instructions' it seems to be the right item and the photos are very comprehensive.

Having further trawled around a few on-line retailers price is around

I go for a stainless steel induction kit from Powertec if they make one for it than a K&N or equivalent, as the stainless steel ones don't need oiling. They make a unique noise too

From what I understand the filtration is pi55 poor though.

Standard filter is changed every 60k.

Got my K&N 57i induction kit all fitted now, very straight forward job (excellent instructions with photos) seems to give sharper throttle response and judging by the 'instant mpg' readout on full throttle is using a touch more fuel, so ought to be giving more power. Perhaps? It also does a lot of hissing and whooshing at low rpm/part throttle, but gives a nice deep throated growl/roar on full throttle.

I kept part of the OEM air intake trunking to give a cold air ram-effect feed to the new filter and also hoping this will keep the rain of it as well.

Here are a couple of pics (the duck tape is for extra security to make sure the OEM trunking stays in the right place);-

I have now got a K&N replacement panel filter available for sale if anyone is interested. Details here;- http://www.briskoda.net/forums/items-sale/k-n-panel-filter-octavia-ii-1-9-most-2-0l-tdi/85590/

After only 4k miles in my PD140 I fitted a Pipercross panel filter and found the engine much smoother, picked up quicker and reduced hesitation.

Highly recommended.