I have for sale a cheap CAI/SRI for the M44. This was an ebay intake that I bought from a 318ti.org member that I was going to use to make my own intake. You get what you see, nothing more. I never had a mounting bracket for it and improvised first with zip ties and later on with a simple metal bracket made from hardware store aluminum sheet metal, which is not a hard project to take on. I no longer have the metal bracket I made. It attaches to the same mount the cruise control module is on. I was planning on painting the chrome intake pipe and using a different filter but I sold the car before finishing the project. The benefit is this intake already has the proper hole for the intake sensor, which fits in perfectly. This is perfect if you want to cheaply add an SRI to your car. The intake has a wonderful sound, it makes an apparent difference in the intake noise and gives in a deeper and fuller sound to it. I currently have a K&N intake on my E46 and although I have never heard it without the intake the intake for the M44 sounds deeper, possibly due to the shorter pipe.
$20 Shipped within the continental US. Shipping to Canada is $27 at the cheapest so far as I can tell.