ok...i've decided to boost my 2012 proclimb M8 and have pretty much narrowed it down to either a silber or a BD kit. Im counting on the success silber has had with the poo to spill over to the cats. the biggest draw is the cost of silber at around 2500 cheaper than BD...their answer to why the cost is so reasonable..."we are not ripping you off". BDs biggest attributes include hundreds of satisfied customers and the electronic boost control. silber has the low cost, no cutting a hole in your tunnel, and reviews from poo owners that they work great. what are your thoughts?