If you want to see the pics in the thread go here
Alfa Pages :: View topic - 56-9252 K&N filters
Here is my first mock up of my 56-9252 K&N filters
Drill two 41 - 42m holes in the base plate 100mm apart, centre to centre.
Remove the two uprights from the end of the oval and drill two more holes closer towards the filter, diagonally opposed, top plate and base plate, this will allow space to fit the trumpets. Do not do them the same on both sides, you need to mirror them so they become sided so the nut underneath clears the throttle linkage.
Drill two more holes in the centre to hold the other end of the trumpets (not done yet), by coincidence the original upright holes are in the exact place for the trumpets.
You will need some
40mm high 40mm ID 46mm OD
The trumpets I would like to fit are these, http://i187.photobucket.com/albums/x...racingcouk.jpg
Keeping them the same height as what’s on there at 13cm from the butterfly to the top of the trumpet gives me 45mm to the top of the filter.
The fuel rail pipe will be pressing onto the filter, if I put it under the rad pipe it will be pressing into that. Can the angle of the fuel pipe rail be changed?
Are different oil dipsticks available for the 16v that are angled differently? The current one ends in the air filter, can they be bent without flattening?
I assume that the best place to put the air temp sensor is in the base plate of the filter, is there any preference as to which side I fit it, does one side of the engine run hotter ect?