Yeah, I was curious about these on our cars too. I'm looking at the
ECS Pulley, and I'm sure the Neuspeed is good too. Just curious if anyone is actually using this on an MKV? I know my last car, Ford Focus, it made a huge difference...but at the expense of my electrical system. Power windows were a little slower, headlights were a little dimmer. Some people with high power stereos would complain about issues. But...that was for my 2002 car. Anyone here have this on their MKV? If so, what are the pros and cons for our cars with this?