Copied from BMW DIY Guy Check out his channel! https://www.youtube.com/channel/UC7zDVKtwgKOhrg2il6nYpRg This is the full installation DIY video of the Injen M4 Evolution intake system! What a great system and upgrade for your car. I want to thank Mike from Extreme Power House for the excellent customer service and the fantastic product! Product link: https://www.x-ph.com/injen-bmw-m3-m4-s55-evolution-air-intake-system/ The installation is relatively simply and can be done with just a few tools, and I highly recommend it! Post installation, I can definitely hear a difference, and with improved cold air intake systems you should also have a slight bump in horse power as well! The other thing I really like about this system is that it adds washable air filters that will last a very long time. Roughly once a year, pull them out, clean and let dry (follow the manufacturer instructions!) and you are good to go! Required parts and tools: Injen Evolution CAI system 13mm socket and wrench 10mm socket and wrench 8mm socket and driver Torx bit set and driver Nice to have: Good lighting Good music - BB King is always good for car work!