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new on here but ive done a lot of research into air induction on tdis.. and i think the general consenus is it wont make any difference performance wise if you upgrade from the standard paper one. i have the green cotton panel fitted and i didnt notice anything. (noise or performance)i will be going to a cone filter which no doubt people woukd disagree with. but i want more turbo noise. so ill have to get ducting and a heat sheild to help battle heatsoak that tdis are prone to also.
 
Get a Pipercross, they are dry. The Green (also K&N) filters are oiled (bad for MAF). They allow more air, but your filter isnt a/the limiting factor on your car.

Got a Pipercross myself, will be cleaning it every year instead of buying a paper one every year
 
Fitted a green cotton filter recently, came with an info leaflet explaing that it was a dry filter element and should be removed and blown through with compressed air every now and again?

K&N filters that i'be had in the past have always been heavily oiled.

i fitted a k&n on my leon - a cone filter, on a diesel they will make very little if any difference at all but it was a lot louder!
 
Green filter for sure. They're not oiled.
Stay away from K&N, I once bought one, installed it, checked it after a long journey and the heat seemed to make the oil wetter. I'm assuming small amounts of oil went through to the MAF. I instantly removed and replaced with a Green.
It makes very slight difference to turbo spooling (I think, unless its a mind thing)
 
Wtf? Green needs to be cleaned with compressed air? I wouldnt recommend it, as the compressed air can mess with the filtering material, making it more porous.

i wont name the company where i bought it from as they had typed the note with the heading "for best results" and slipped it in themselves. i however know a little better.
 
OEM paper one and sod the rest lol, pointless crap and wont make the slightest bit of difference at all, not even the extra power of a single flea! I **** you not :D

Try no filter at all

http://www.youtube.com/watch?v=mMmIqOXxjQU&noredirect=1


Not a thing, the standard paper ones are good for three years or so anyway. Paint your airbox instead

yeah i did see that video before actually. But is that the same theory after a map??
 
Saw 6bhp on the rollers after green filter, cold intake intergated into the airbox and egr delete on my 1.4tdi.
 
None! Oem all the way!

Seen far too many damaged turbo's with after market filters
 
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What a bargain! Considering it's most likely to do with the dyno, tyres, level of grip or operator.

so that'll be the on dyno at work (bosch 2000bhp 4wd), the same unadjusted tyres that were on it an hour before and me (the operator & knod ed :lol:).

i believe the egr delete made the most difference HOWEVER on an arosa tdi the air intake is in the wing and very resricted so i made my own directley located in the bumper with 2" ducting which appears to have worked wonders in the samll intake system. AITs went down 3degrees there after aswell.
 
Yeh but that dyno is only as good as it's operator :p


Still a fluke though, it's been proven time and time again that these filters make no odds.
 
between me and you i think it made about as much difference as it would Al Murray using herbal esseces, i believe the extra power was yielded from the extra intake mass from removing the EGR resriction and creating a better, more efficient opening to feed the airbox, it would probably pull the same with or without the filter.
 
one thing to note was that the mpg increased by a noticable amount, around 10-30 miles per tank extra and my driving style does not change.
 
Yeh better boost in general helps the mpg's, I've noticed that big time with my map. Cruising about 80-90mph and getting about 60mpg's while pushing 140-150bhp really isn't bad. Makes me smile thinking about the petrol motors doing the same lol