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Oiled filters (eg K&N) can cause issues with the MAF as far as I know, although I've no direct experience.
The standard filter setup is a cold air intake though, so I don't personally see the point replacing it unless you need to because you want to go Stage 2 and can't route the pipework with the airbox in place. If anything, a typical air filter cone on the end of the MAF will just suck in warm air.
1990 Peugeot 205 GTi 1.9 // 1991 Peugeot 205 GTi 1.9 16v // 1992 Peugeot 205 GTi 1.9 // 1999 Peugeot 306 HDi Estate
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There is a thread about hdi air filters. Loads of tests done on a rolling road and either the stock filter was better or made no real difference.
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Like the deeper noise and the turbo noise lol
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get a decat for turbo noise and better performance?
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19-02-2015, 05:57 PM
(This post was last modified: 19-02-2015, 05:57 PM by Poodle.)
S2000 oem filter with the standard cold air feed would do the trick. Alternatively you could smooth the inside of your standard airbox, that would help amplify the noise.
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The only un-oiled cone filter I know to is the ram air kit. £46 on ebay iirc, I have one due to intercooler pipes but tbh I plan on going back to an airbox or make a heatshield for this one.
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Pipercross also make non-oiled filters, but RamAir are cheaper (and slightly worse quality).
