What are the downsides to IMA? I mean, I'm sure there are some, but I'm not too familiar with the system.

However this is very encouraging news indeed. With an IMA Civic Type-R putting out around 250hp, the next Integra/RSX Type-R should be at least 280hp. This will allow Honda to fight the flood of turbo domestic compacts, while retaining its image of being efficient and technologically advanced. The 25k price is pretty tight, as most of the domestics will undercut them by around 3-5k. And its a shame it will still be FWD...