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18th October 2018, 19:10 | #1 |
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K&N air filter (in airbox) Are they worth it?
Views on the in-airbox K&N's, please:
Are they worth it?
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18th October 2018, 19:12 | #2 |
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Not really.---
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18th October 2018, 19:15 | #3 |
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rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
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They will last the lifetime of the car, so you'll never need replace it. Cost effective? Depends on how often you change the car
Performance? slightly better breathing but you're not going to make 50bhp I have an airbox one & an open induction, love them both |
18th October 2018, 19:26 | #4 |
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Mazda 6 Join Date: Dec 2013
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no
for one thing cleaning them is a pain in the bum, then you have to re-oil them so it's just easier (and actually cheaper) to buy a normal one every year. The airbox ones make no difference in performance either and if it's a diesel it will possibly contaminate your £160 MAF Last edited by mystabe; 18th October 2018 at 19:28.. |
18th October 2018, 19:53 | #5 |
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Banana has had her flat K&N filter for the last 6 years.
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18th October 2018, 20:04 | #6 |
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Had a K&N in my diesel ZTT’s air box for nearly 7 years now with no effect on the MAF whatsoever. It’s when people over oil them that causes issues.
Cleaning is easy, do mine once a year. It’s the first job I do when servicing, gives it chance to dry, just give it a blow with the compressor to make sure before I oil it. So, over the 7 years I’d have used 7 genuine standard air filters at around £12 each......£84 The K&N cost me £39.99 and I’ve used half of my second cleaning kit at £10 each.......£15. So, in seven years, it’s cost me £55 with the K&N opposed to £84 for gen standard filters You also get a couple of cool stickers with them too
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18th October 2018, 21:38 | #7 |
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So you save £5 a year for no measurable benefit?
and you still have to mess about with it rather than just drop a new one in.... Obviously the stickers are cool! Cool kids have Pipercross ones but K&N are old skool kool. All nonsense if you have a standard airbox Last edited by mystabe; 18th October 2018 at 21:44.. |
18th October 2018, 22:26 | #8 |
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Had a few performance filters over the years and to be honest, I'm sure that any performance gain was all in my head. To actually feel a difference your going to need and extra 10 bhp minimum and that just isn't going to happen on a car in standard tune. For a modified engine they could be worthwhile.
Really can't be bothered anymore especially on my diesel, rather have the superior filtration of a standard filter even if it does cost more in the long run.
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18th October 2018, 22:44 | #9 |
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why would we judge any real world performance benefit in "Peak" bhp figures ?
from my experience - the Car breathes a lot better with a K&N panel filter jobs a Good Un throttle response IS better - maybe not Huge Measurable Gains - but Noticeable enough to be worth fitting (IMO) Sounds Good too Paul. |
19th October 2018, 12:38 | #10 |
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I had to get the Professionals in for a wasps' nest recently - I was Building a storage Unit (ok a Shed ) for a local Hotel - while removing Timber from the existing container I was stung a few times on the Ear - not a Nice sound when a wasp is buzzing in your ear while stinging there were too many wasps and I didn't want to upset them any more and risk a Guest being swarmed. I've heard them chewing a wooden fence panel and was surprised to find it was a Wasp making such a loud noise too.
r.e K&N - I've recently stripped the top of my Engine (possible repairs still on the Cards) so i Have the K&N filter in the Shed - I'll maybe check later when it was fitted and take a photo showing current condition - I haven't cleaned it since fitting. r.e Performance Benefits - I'm sure in the 1.8t and the Diesels(?) there should be No "Peak" Power benefits - as you won't get higher boost pressures than the ECBS or Wastegate allows I'd be interested to see any difference in the Power Curve up to "Peak" (around 5500rpm on a K-series?) with a paper vs K&N filter. - you don't get higher Boost pressure, but if you reach peak Boost sooner would it affect a Dyno Graph read out ? that's just out of curiosity tho I don't drive my Car on a Dyno - in the Real World I KNOW the Car responds Better with a K&N and there are No concerns of clogged sensors - with a 1.8t at least Paul. |
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