I've done a lot of research and have found that performance coils for BMW are hard to find, especially for the performance driving 4.4L V8. I've always upgraded the coils in all my vehicles to MSD and have enjoyed the performance and MPG gains from them until now. I have a 2012 BMW 550i with a twin turbocharged 4.4L V8 and I'm due soon for a tune-up. I'd love to have some MSD coils to upgrade too. Would it be possible to venture into this arena? If so, I'd love to get some for my car. Thank you.