Help needed , air filter nypex NA

[stormrider]

I'm building (almost finished) a naturally aspirated nypex . Apex air oz don't fit either the nytro one with the new motor.

I need to buy air filter , since they are really expensive, I don't want to do mistake.

I'm thinking http://www.knfilters.ca/mobile/mProduct ... od=RC-1062

Over the intake runner that are in the stock air box

I have a hindle straight pipe that I e been running with success over the years on my apex too.

Is those filter a good choice and is that easy to tune with pc3

Thanks