Its relatively easy if you remove your airbox. If you leave it on you will struggle endlessly trying to get that sensor under the airbox. Its at such a tough angle.
Originally Posted by wildcardz
I would definitely be interested in getting help installing the JB4 from someone in Houston.
2012 535i M-Sport
Previous BMW's: 87' 528e / 04' 325i / 07' 335i / 08' 335i / 08' 535i