Some reckon that often, aftermarket filters that use oil (like k+n) can cause long term damage to the MAF, leading in poor performance.
It's also said that the performance gained isn't very noticeable anyway by some.
I've never tried one myself, and I'm abit put off with all the stories of MAF's going awol (as they aren't cheap to replace).
A good friend of mine however has just stuck a K+N panel filter in his R32, and he swears it now pulls much harder top end. Whether or not he's just imagining this, I dont know. But I will be driving his car very shortley to compare..
ive had a k&n fitted for about a year now and after taking it to jabba for a map last week mike told me that the maf was coverd in the oil out of the filter and has told me to cean the maf again in a couple of months..
Yeh i also had a filter on mine, and it hs messed up my MAF (gutted). There are other types of filters you can get i think that dont have oil in them (jabbasport). Must say the increase was marginal, and could of been more psychological than anything else!
I put a K&N in my V5. I hardly noticed the difference in power and a short while later the MAF needed replacing. Thankfully I got it done under warranty. In my old 2.0 Litre however the K&N made a bigger difference but nothing really special. I think the removal of the dead leaves and other debris from the air box during installation had more to do with the performance increase. I now use standard filters and replace them very often to maximise performance. At about ?10 a time it's not too bad.
Starry. I've got the standard air filter in my car and have noticed some small oil deposits in the intake pipe and on the MAF. How did Jabba recommend that you clean your MAF as I've been told that you can do more harm than good?
My piper-x on the 4mo is the only filter that i have ever had where i can really feel a difference. It revs more freely and feels like it has more punch. It could do with better cold air feed but you can't have it all.
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