I've been really impressed with AFE products. I ran their filter in my S2k, their Stage 2 intake in my X, and now their Momentum intake and only keep getting more impressed with their products as they progress. No aftermarket product is perfect, but theirs are as close as I've found. BMW guys take note, they make a ton of stuff for your cars too.
The car immediately started up and ran/idled just fine. Drivability is great; I am getting a little rev-hang between gears buy my X did the same with the ported TB and it just took the ECU a little while to learn & adjust for it. The car sounds even meaner now, throttle response is much improved, and the butt dyno tells me the parts are doing their job
