Received my New Era CAI on Thursday. Took me exactly 22 minutes to install it (wife timed me). I know this cars acceleration very well and after I installed it I noticed the low end and mid range power was noticeably better. I really like the low end power increase. Plus, the thing looks bad ass. I was at a cruise in tonight and everyone was commenting on this thing and how cool it looked. One guy told me he is taking off his "other" aftermarket CAI and putting this one on just for the looks alone.
Personally I think its the best CAI out there.
No surge problems. No idle problems. The only thing different is the power increase.