Derek Kane 0 Posted January 16 Share Posted January 16 Hi everyone, has anyone tried fitting a k&n air filter on the is250 and if so what are your thoughts? My standard one could do with a change. Quote Link to post Share on other sites
ahmed-abrar 6 Posted January 16 Share Posted January 16 yes its worth it if the cars a keeper (3-5 years plus) & your gonna do the mileage, no performance gains in my opinion unless with other engine mods part no 33.2345 btw if you haven't already checked Quote Link to post Share on other sites
Derek Kane 0 Posted January 16 Author Share Posted January 16 Yeah not expecting any performance gains but heard that it gives a more throaty sound. Quote Link to post Share on other sites
ahmed-abrar 6 Posted January 16 Share Posted January 16 only if you go with an induction kit, standard air box element has no sound benefits Quote Link to post Share on other sites
Linas.P 1,354 Posted January 16 Share Posted January 16 I had K&N filter... no difference to be honest. I could not even say intake noise was better, maybe on F-sport. As well I suspect I may have oiled it wrong and that caused MAF issues and had to clean it etc. If you ask me - not worth having. Quote Link to post Share on other sites
ColinBarber 2,099 Posted January 16 Share Posted January 16 Not worth it IMO. As others have said it doesn't really make a difference to the sound if keeping the stock airbox. Most people over oil them and cause issues with the MAF. You don't really need the extra air that the filter can pass if you aren't doing other mods to make use of it because the stock system isn't causing a restriction. The better breathing comes at the cost of less filtering which increases engine wear (although very minor). Back in the 1980s when you are changing the filter every 10k miles then there could be a cost saving, now when the OEM filter only requires changing every 40k miles that advantage isn't there. Quote Link to post Share on other sites
Derek Kane 0 Posted January 16 Author Share Posted January 16 Ok I'll probably go with stock then. Quote Link to post Share on other sites
Yorkie740 34 Posted January 20 Share Posted January 20 I have the k&n filter on a is220 to be honest every time I have a different car I always put the k&n filter in You won't gain a massive amount but it does feel a little freer on the throttle and you do get a nice little tone from it I don't know how much you're paying for a standard filter but it's only £35 from EuroCarParts I'm pretty sure it's the same filter for 250 and 220 Quote Link to post Share on other sites
Derek Kane 0 Posted January 22 Author Share Posted January 22 Ok I'll see what's about. Maybe it's just psychological but would probably work better on your car being turbo. Quote Link to post Share on other sites
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