300kms. i get a little over that from a full tank. mine is stock apart from a K&N air filter.

will removing those plastic boxes on the air intake improve things? the one before the filter and the one on top of the engine. <img src="/forums/images/graemlins/frown.gif" alt="" />

These are dampers, acting as reserve tank that provides some air on piston intake strokes and replenishes in between strokes, the idea being to have a steadier flow in the duct rather than a pulsed flow with each piston intake helps making a larger average flow possible because a pulsed flow has times of low flows, and times of higher flow but higher flows are proportionnally more hampered by duct friction than low flows: double the flow, and the pressure loss increases about 6 times...
IN addition, this steadier condition helps the MAF make a better measurement hence , theoretically, a more accurate fuel air mixture.
soooo...keeping the dampers is more help than a nuisance,... .speaking of fluids dynamics of course....
..in other makes of cars, they use honeycomb structures to favor laminar flow .. that is, equally distributed flow across the section of the duct, rather than turbulent flow, for about the same purpose.

so in other words. leave it there. no point removing them.

but u get a good induction noise with a pod filter hehe but it is a bit doey low in the rev range.

Well
I had removed both long time ago... and I remember I saw some difference...
Otherwise I would have put them back in place...