they hold the engine in place, they can heavily affect the ride.....mainly under load and deceleration.

but then again guys the inovative motor mounts seem to bring a transmission mount as well as brackets for the motor mounts and tranny mounts. if it does include these im just gonna spend the extra couple of bucks and get innovative. i emailed an ebay seller and im waiting for his reply
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=50454

The more "solid" the mounts, the more it will change the way the car handles and drives. It will also make the car sound louder as the engine movement is more direct.

The innovative kit comes with the replacement transmission mount. It's a real piece of work, the only real modification that truly improves the transmission engagement for our cars.

Whatever type of shift knobs have nothing on innovative's transmission replacement mount.

Yes, the innovative kit is a real well engineered product. The lifetime guarantee is a testament to their high level of quality and post sales service.

how difficult are these to install?

Both of my engine mounts were bad so I got the Innotive 75a's. Installing them took about 2-3 hours by myself. Really straight forward except the tranny mount. Having another set of hands might help with that one. Overall I don't think i could have asked for better quality or results.

Well 75a's are going on my to do list now! Thanks for the info.

cool now i know

If you are concerned with ride comfort do not buy stiffer ones. Especially anything over 65A. I had really stiff mounts on my DSM and it just totally destroyed any possibility of a comfortable ride lol.
Whole car would vibrate like crazy!!

You might check in the FI section. Lots of info on motor mounts there. Currently the same thread ongoing...
https://www.s2ki.com/forums/index.php?showtopic=794689

75A is still not too bad, I wouldn't go anything over 75A.

65A are better than JDM type stiffer rubber engine mounts. If the car is meant to be driven 90% on streets, 65A would be a better option. Then again, I am worried about the sagging.