A quick use of the search function will yield you quite a few threads. The only other than oem replacement I've heard of is a very expensive high performance model that you'd need if you track your car frequently. My consensus is that most aftermarket parts excepting those designed by ln engineering or Pedro's garage are inferior to what porsche designed the car with.
Most mechanics will replace all hoses attached and also look at your oil fill tube which is one of those while you're in there jobs. Not required but some of those hoses can be brittle after years of use and they break. I replaced the main j tube when doing my starter because I broke my old one while pulling the intake out.
I'd get your aos done as soon as possible. Sometimes they last for a while and will start throwing the white smoke trail, but it's a plastic part and if depending on how ruptured the part is, eventually it will pull oil in increasing amounts into the intake and it will hydrolock your motor which will yield you a pretty porsche boat anchor. Not worth the risk if you ask me. 130ish dollar part and two hours of Labor should do the trick or dive in yourself.
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