i've been using the standard airbox with a cold air intake running from the front bar and feeding straight into the snorkel.
a couple of weeks back i put on a huge 6" M's K&N pod and instantly noticed sufficient lag, even with the cold air intake pipe in place. i've always been against pods because of heatsoak.
my next mission is to cut a hole with a holesaw undeneath the airbox and through the chassis, and place a 2nd cold air intake pipe there. might even replace my filter with a bit of stockings for better air intake.
my2c!