Ok guys, everybody is talking about K&N or Dinan air intakes.
Here at Nikis Place have we been testing on the Niki Project car 1 (E30 - 320) with several different air intake solutions ( OEM, OEM+newer airbox, ITG, UFI, K&N, K&N performance & lastly Green)
Well we had to make our own kit to make it fit BMW E30.
For some darn reason did the mechanics "forget" to make Dyna's of every solution (or did Niki overrule my decission??) but anyhow, this is what we learned :
ITG / -1
OEM / 0
UFI / 0
K&N drop filter / 0
K&N Performance Kit / +1
Green Twister Performance Kit - Nikis Edition / +3
The filter is placed in an aluminium heat shiled which helps to funnel as much air into the filter as possible. The shield helps to create a vortex to maximise the air throug the filter, it also acts as a shield to protech it from engine bay heat.
The top of the filter has a moulded twist in to help spin the air into a vortex for improving air flow through the filter.
Air intake diameter: 79 mm
Filter shield lenght: 180 mm
Filter shield diameter: 132 mm
Comes in different colours - but we recommend the aluminium version - as it will remain cool and the air flow will not be heated by engine room.