Best 50 buck mod!
Install
There are more than one motor mount bushing out there available. I got the purple Powerflex one. It is a nice, high quality eurethane product from England I believe. I did the install myself. Ive heard that some of the other ones are super hard, almost plastic, so maybe that's where the vibration gomes from? You really only need the lower mount from what I can tell. I guess if you got up to 500 HP or so, you might want to replace the others. I get no problems/vibration turning the AC on. My car is a 9, maybe that makes a slight different (different ECU) in the idle quality? Another reason the EVO 9 is far superior to the 8! (Just kidding guys!) Maybe others are more sensitive to vibration than me. I did the install myself using printed up write-ups I found here and at SoCal. If you can find a press for the old bushing, you will be glad you did. The install take probably 1 HR, the hardest part is the undertray. I love this mod.
You will get vibrations. Whether they're annoying or not depends on your personal threshold for such things. I don't even notice mine anymore except occasionally at very low speed when getting the car started moving forward.



