Mods are: Intake: https://burgertuning.com/products/bms-b58-billet-intake-for-f-chassis-bmw-140-240-340-440 Catless Downpipe: https://www.vr-speed.com/vrsf-4-5-catless-downpipe-b58-2016-bmw-340i-440i-740i-xdrive.html BMS Water/Meth Kit (fully loaded/Duel C7 nozzles 100% meth): https://burgertuning.com/products/basic-kit-for-b58-bmw Step colder spark plugs