this seems to be a cheap altenative to get a good filter
but strongly not recommended

HKS Super Power Flow is design not only the filter element,
but also the filter shape is designed to cause higher and faster air flow.
check this link for the air flow sample for HKS Super Power Flow
http://www.geocities.com/kaitospeed/hkspowerflow.html

it show tat on the bottom the filter cone shape create a vacuum space which will result in higher air flow into the filter

HKS filter
- washable by clean water, last for 2-4years
- generally believe higher air flow
- filter element can be change , 2/3 layers available price around RM80-90

K&N filter
- washable by K&N cleaner kit ONLY, lifelong usage
- MUST clean + reoil every 50000-100000km usage
- generally believe better filtration
- cleaner kit available around RM65-90, 5-10times usage

for open pod filter,
heat shield is a must.
without heat shield,
ur open pod just won give u as much power gain as u expect
and it will be fuel comsumption as well.

if u really wan "high power" "great sound" "best budget"
try to get a second hand hks power flow
which the element already old/spoilt
grab it cheap cheap around RM50
and change the HKS element to
2layers - higher air flow
3layers - better filtration
the price for both is same, RM80-90