Originally Posted by nitehawk
OP, I just purchased a Wavetrac unit based on the plus points that you mentioned. The Wavetrac is really no more higher maintenance than the Quaife. If you ever did have an issue, that would be covered with their lifetime warranty. I think with the Quaife, you really are just paying for their long established reputation.
Ps. It's nice to see you took the time to search before creating a thread
I wish more users did that!
You're also paying for the cost of European origin; shipping across the pond and in my case, across the US.
Big picture: Not make or break - proven performance gives peace of mind. I went for Wavetrac, OTOH, and have yet to have anything to regret!