Does anyone know where i can get a good air filter from? needs to be a big one as aiming car for 350bhp K&N perhaps?

Doesn't need to be big just needs good flow, the apexi filters will be more than good enough for that power level.

If your after more for looks aswell then try at the ram air ones they do some rather big sizes

Do you what size i need? as in would it fit the hose attached but still have good air flow?

Is this any good? http://www.demon-tweeks.co.uk/perfo...ters-universal-round-straight-air-filter

i have apexi cone filter on my car... works great and not had any isues as yet... i run around the 350 hp mark.

originally had a K&N fitted, but didnt like the noise it made when letting off the throttle... also not keen on having the oil type of air filter as they may cause issues on the mass air flow sensor.

apexi filter is dry type filter and after reviewing several types of filter on the internet / youtube... found the apexi to offer the best filtration... picked ine up off ebay for about £110 ... watch out for the cheap ones as they are imitation ones and not anywhere near as good as the genuin... there is you tube clips on how to find fake apexi filters.

just my 2 pence worth for you.

http://www.nengun.com/apexi/power-intake-kit-universal

£52 + shipping (from Japan)