Selling an extra E90 alarm ultrasonic module I have. BMW Part Number 65 75 9 244 134 . Retails for $199 on ECS Tuning, so you're getting a steal here.
Didn't end up needing it after I realized that the existing one I had was not working due to a coding issue. Bought from a BMW dealership and never used.
Great for anyone looking for a cheap replacement on a broken part or wants to try doing an alarm retrofit.