actually, according to import tuner, you can remove the harmonic dampner on 4 cylinders. |6's is where you have to watch out. Then again i've read some people having issues w/ bearings and such and attributed it to no harmonic dampner.
There's also a product available from ATI engineering that has a super dampner built in, if you really still wanted it.
Google ATI super damper & Horschel Motorsports Original fluid dampners.
none the less, you could under drive all the pullies attached to your peripherials such as power steering, etc.
Correct me if i'm wrong. It's only what i've read.