Anybody had experience with green cotton panel filters ?. Car is a 2008 hatch

 

I believe these are oiled filter's, which are no good for an impreza engine, unless your running maffless as will only cause issues with the maf over time.

 

i went with a apexi panel in the end for that reason. Would of bought a cosworth but they don’t make them for the hatch anymore

 

OVER oiled filters can cause an issue but in general (apart from the poor 99/00 MAF's) then as long as they are not drenched in oil there is no issue with Green or the original K&N style and have used for years.........

 

I think I went for one made by pipercross for Subaru Pro R.


https://www.sgpetchparts.co.uk/subar...lter-4840.html

 

Been running a Green filter in my 99 UK Turbo for the last 9 years, no problems so far.

 

Shame the Cosworth ones are no longer available

 

That said...............

https://www.sumopower.com/Brands/COS...0-STI-20002278

® - The Official Roger Clark Motorsport Website

Not sure if they have stock?

 

I've seen them about aswell still forsale.

 

I've run oiled K&N and green cotton with no problems, currently got a dry flow AEM. The only filter that I wouldn't use again is a Cosworth; after 2k miles there was visible dust behind it, and it had been clipped in all proper. They breathe too well and I know a renowned engine builder who confirmed this.

 

Still listed on Scoobyworld

 

The Cosworth ones

 

I’m on my 2nd Simota on Widetrack Sti,1st one in for 5yrs, caught loads of crack so obviously doing the job

 

I emailed RCM about this and they said that cosworth have discontinued them. They now sell the Apexi ones which I’ve bought

 

STI one if you really want to push the boat out.....part number ST1654621010

 

But £85 for a throw away item......

 

plus if you read their tech jargon they state theyll not cover any maf damage and can invalidate any warranty 😜