DV and Air Filter for GTI

[NMavs]

hi guys. Just got my gti this week, will post pics this weekend hopefully after i give it a gud clean. But am looking to get a jetex filter and forge dv. Was just wonderin what size jetex i need to get, and will i need to buy anythin else in order for it to fit? Also, for those who have one, how hard are the split r DV to setup correctly so you dont get the ecu light? Cheers