Thanks everyone, okay i'll do a video if you want
types of inlets I've messed around with:
1) Nothing attached to inlet: Ultra loud spool, metallic, chattering surge, long length - audible between -1 - 14psi
2) 15cm, 2" straight cut: very loud spool, sounds like some sort of tropical bird - not recommended
3) 17cm, 2.5" straight cut pipe: loud spool, this is your typical 'bro, hear dis'' very loud, high pitch, medium length - peaks at 4-14 psi
4) 20cm, 2.5" 45 degree bend: audible spool, medium pitch, medium volume, longer length - peaks at 0 - 5 psi
5) 17cm, 3" straight cut pipe: loud spool, low bitch, loud, short length (barking, low pitch sound) - peaks at 8 - 14 psi
If your wondering about filtration, my engine layout doesn't allow a pod filter (it's a very tight fit) so I cut up an old pod, used the material and 'sandwiched' it between metal mesh - this will filter the air but I don't recommend it if you want a nice dose.
Anyway, should I do a video inside or outside the car and what pipe?