here is a guy who dealt with this when buying a billet filter cap from ecs. He uses this wrench:
https://www.amazon.com/LZM-1021-004-0-36MM-Filter-Wrench/dp/B01FE5PIBG
I'm pasting his comment on the ecs website (
https://www.ecstuning.com/b-ecs-par...cs-parts/billet-aluminum-oil-filter-housing-kit-silver-anodized/003602ecs01a01a) here:
Funny thing is ecs guys went into the trouble of designing the cap without thinking of replicating valve inside the oem cap !!! or adding something to make it easier for the customer to drain the filter, like the guy who designed it never did an oil change in his life
I have heard little mention on the web of the Fumoto oil drain valve being used as an oil filter housing drain so I thought I'd relay my DIY experiences.
The Audi 2.0 turbo (BPY) engine uses that plastic housing rather than a disposable spin on filter. This works okay for a while but with age the plastic housing can crack and leak. Mine became ���grabby��� at the threads and was very hard to remove. Removal of the plastic housing normally requires a special six-point 36mm low-profile socket and special drain tool.
I replaced the plastic housing with the ECS billet aluminum housing. The part is very finely machined, high quality and robust. I am impressed.
The original plastic housing has an integral drain valve built in. I liked this feature and wanted to replicate it as it makes the task of draining the housing much cleaner. The ECS aluminum housing does not have this valve but has a drain port with conventional screw-in drain plug.
BTW, I use a marine engine oil vacuum extractor to drain the filter and the oil pan (via the dipstick tube) all done from above rather than having to crawl under the car.
I purchased a model F-106N Fumoto valve with the same thread as the drain port, M14 X 1.5. It mated with the new housing perfectly. However the Fumoto valve is in the way of a 36mm socket, so I now use a 36mm oil filter wrench by Level Zero Motorsports, part no. LZM 1021-004-0 (via Amazon). This box-end wrench (just) clears the Fumoto valve body to gain access to the wrench-able hex section of the housing. This whole system works nicely, an oil/filter change now takes me less than 20 minutes.
