I doubt Dinan will offer an attractively priced solution for the 330i N52, simply because BMW has already max'd-out the perf for that engine ... for the 325i N52, its a completely different story, and I consider it to be BMW's gift to the tuner world.
For the 325i N52, I believe Dinan will offer solutions with multiple levels of perf, with a first-level upgrade that keeps the single-stage Intake Manifold, and increases the lift, duration and overlap of the cam-profile just slighlty (my best guess is that they can achive a 15-hp and 15 lb-feet torque gain, with 0.10" lift, 10-degree duration, and ~3-degree overlap increases) ... and that this first-level upgrade will cost no more than $500-$700.
If one uses the latest Car & Driver test of the 325i as a baseline (0-60 in 6.1 seconds), then the first-level Dinan upgrade should achieve a "consistent" sub-6-second 0-60 time!
