I installed the Kirban last night. It took roughly an hour for the whole thing. What noise from the tranny are you talking about?.... a ha... I found a cheap $2 fix for that problem. Actually, I've read many posts on the Kirban and the Ripper transmitting more noise than the stock. So, for precaution I went to Pep Boys to buy some sound deadening materials as some of the guys in this forum recomended. They didn't have anything there. So, I went to home depot, and guess what I found.... a toilet tank ball.. yeah, a toilet tank ball.
As you can see, the Kirban doesn't have the center rubber cover (i don't know about the ripper) as the stock has. I also bought the heat resistance pipe shield tape. The toilet tank ball fits perfectly in the center of the kirban (you have to cut the center part of the ball out) and I use the tape to tape up the whole rubber cover of the tranny.
The Kirban rocks, I love it. Shifting distance is a lot shorter and very precise. It was a little bit rough at first, but after a few times, you'll enjoy it everytime you shift. Yes, it requires a little more effort to shift than the stock, but not much at all.
You can still hear a little whine from the shaft under heavy acceleration (I mean heavy). But, normal driving, zero noise... I think it maybe a little quieter than the stock now as I added all those noise reduction materials.
The 2K resistor CAGS bypass is next for me. I got everything already, just need to find the time to put it in.
Good luck.....