I've been following this topic for a couple of years now; especially articles pertaining to the IPD plenum. Interestingly, most of the "tuners" that I spoke with initially (particularly the German ones) viewed this upgrade as a waste of time and money . Curiously, however, over time most them either began selling the IPD product, or developed a similar plenum of their own . Unfortunately, there doesn't seem to be enough supporting data regarding an M96 application to justify spending $1000 . I've heard a lot of "seat of the pants" and "butt dyno" endorsements. But no real evidence . It's up to you TRK to create a test bed ! If it's proof-positive, then a lot of us will buy one from you .