The install took definitely more than 20 min...but it is probably because of my inexperience with tools/modding.
1. The vid/install guide/DIY recommends 12" socket wrench extension....they didn't have at Home depot and recommend that I go to a commercial store like Northern equipments. I ended up just buying the 10" and useing another extension. (Though I realized 10" would have sufficed in certain angles.
2. I definitely recommend using a lift, instead of jack stands. at first it was not high enough so I thought I was going to sufficate under the car.
3. It was PITA because of the exhaust pipes. There just isn't much room to work. Luckily I had a friend there to help me out.
I didn't really notice increased noise or anything...but the shifts are definitely crisper and notchier (in a good way). It's not really that noticeable under regular shifting but under WOT, I can definitely rip thru the gears.
One thing: I didn't have 12mm or 5/16 (?) socket to tighten the bracket bolts at the end...so I CAREFULLY used pliers and adjustable wrench. Not sure if its' tight enough but I know the idea is NOT to overtighten....Will this come loose? I mean it was pretty tight.