[bluewater328]

https://www.fcpeuro.com/products/bmw...Lw_wcB#fitment

Bottom of the page has the other items you should probably get (up to you on the actual ESS itself along with its seal). You don't really get a packaged discount.

https://www.ecstuning.com/b-assemble...11127581215kt/
or
https://www.ecstuning.com/b-assemble...1377524879kt1/

https://www.ecstuning.com/b-assemble...it/n52ofhgrkt/

https://www.fcpeuro.com/products/bmw...11428637821kt1