Discussion
I have seen it thanks. I agree I would normally pick Apexi but looks like I will be getting this one free.
I take it you mean this site.
www.mkiv.com/techarticles/filters_test/2/
Sorry if I jumped the gun
>> Edited by YarisSi on Wednesday 9th March 21:26
I take it you mean this site.
www.mkiv.com/techarticles/filters_test/2/
Sorry if I jumped the gun
>> Edited by YarisSi on Wednesday 9th March 21:26
There are tests everywhere that say one is slightly better than the other at different things.
Then another test would appear than says something totally different.
IMO K+N have been around for longer than most, and while Ive used various different filters over the years on my engines, Ive always went back to K+N. Not for any other reason usually than peace of mind that I am getting a tried and tested quality product.
Virtually every test says K+N are very good in all areas, between flow, and dirt filtration. Some other brands may be better in a particular area, but K+N repeatably does well everywhere.
Then another test would appear than says something totally different.
IMO K+N have been around for longer than most, and while Ive used various different filters over the years on my engines, Ive always went back to K+N. Not for any other reason usually than peace of mind that I am getting a tried and tested quality product.
Virtually every test says K+N are very good in all areas, between flow, and dirt filtration. Some other brands may be better in a particular area, but K+N repeatably does well everywhere.
Very rarely do any of the published independent tests say anything meaningful - largely because it's a complicated subject. Most people just want to know 'which one's best?' but there is no single correct answer.
For what it's worth, I did a test with MIRA a few years ago and the K&N came out as one of the best for filtration - ie filtered out more dust than many other filters managed. Whether or not the engine is affected at all by the dust other filters let through is a moot point, though...
For what it's worth, I did a test with MIRA a few years ago and the K&N came out as one of the best for filtration - ie filtered out more dust than many other filters managed. Whether or not the engine is affected at all by the dust other filters let through is a moot point, though...
ive had a lot of experience with pipercross vs k&n both in induction kits and also carb mount filters. as a result of my (admittedly unscientific) findings, i will only now buy k&n. noise/filtration/performance are much of a muchness (to my untrained ear/eye/right foot, but the well thought out fitting kits and build quality of the k&n puts it head and shoulders above its competitors.
Thats sounds good. I'm being given a filter for yaris with only a 2k on it. So I'll stick it in and see the difference it makes. Not expecting to notice anything really. Apparently they sound differently which I will probably hear. Also makes breath better and better throttle response. No idea if I will notice this. What do they mean by better throttel response. Is that mean when I rev it it will rev quicker?
paolow said:
the well thought out fitting kits and build quality of the k&n puts it head and shoulders above its competitors.
Hmm. The filters are nicely made, certainly, but some of the 'induction kits' are laughable (WERE, laughable, at least, because I haven't looked at them recently). The whole idea of them is to duct cold air to the intake, but the one I tested made absolutely no difference to the intake air temperature.
Andrew Noakes said:
the well thought out fitting kits and build quality of the k&n puts it head and shoulders above its competitors.
Hmm. The filters are nicely made, certainly, but some of the 'induction kits' are laughable (WERE, laughable, at least, because I haven't looked at them recently). The whole idea of them is to duct cold air to the intake, but the one I tested made absolutely no difference to the intake air temperature.
interesting you should say that. in the past when ive bought kits from piper x its literally been a cone filter with a bent metal bracket to attatch to the engine and thats it. K&N on the other hand actually do include some ducting in their 57i kits so you can have some cool air wafting past the filter.
now, im not so naieve to believe that this token effort has any real effect given underbonnet temperatures, but i do believe that, if you are going to go for a kit, k&n is the best on the market (unless youve got a nismo in which case people seem to love HKS).
why? because all the kits are engineered to sit in place of the airbox anyway so they will all be drawing the same hot air. in this case its surely just better to go for the best engineered filter, even if it is a couple of quid more, and the cold air ducting cant hinder things no?
actually. ive just re read this and its a pretty flimsy argument - basically, what im saying is that, filters are generally put in the same place in an engine bay and have similar parameters. you can get 'green' filters probably fairly cheaply but i have k&ns on a subaru, capri, nismo and tigra and im perfectly happy.
i also have piper on my 7 (and used to on my 309 GTi). Theres no comparison IMHO. to be fair, they are older piper kits, but then, some of my k and ns have been at least second hand when i got them and still going strong.
in sum. expensive; but K&N command a premium for a reason.
Heres a related question - how do i get my car to pass emissions happily? Last try it passed emissions at least, but that was basically because they couldnt get a good reading on it.
The different test centre may be more competent. Its got twin k&n filters, and the carbs have been rejetted for more go, and the engine is ported if that makes any odds. stainless exhaust, but that shouldnt affect it...
Ive heard of taping over half of each filter... will that work or will it just make it even richer?
The different test centre may be more competent. Its got twin k&n filters, and the carbs have been rejetted for more go, and the engine is ported if that makes any odds. stainless exhaust, but that shouldnt affect it...
Ive heard of taping over half of each filter... will that work or will it just make it even richer?
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