I've had a 75mm on my 94 before I switched to a fox setup with a 90mm. It worked fine. I have a 70mm on my 95. It also works fine.
I had two different BBks on my car....Both had a slight whistle at tip in but I thought it sounds cool.
So now that everyone has responded... What was the objective of the thread? Are you having problems? Concerned about getting one?