I just checked some of my history and the pulleys have been on for 10 years now. They did make a significant difference when installed. Never had an issue with them except, my recent power steering...
Type: Posts; User: 3ZHPGUY
I just checked some of my history and the pulleys have been on for 10 years now. They did make a significant difference when installed. Never had an issue with them except, my recent power steering...
I looked into it many years ago and never found what the actual gains were. I then talked with a DINAN/BMW tech that had installed a few of them. His opinion was that I didn’t do much at all and...