Had these tips for about 3 months on my M3. They looked fantastic and were a huge improvement to the oem exhaust. I'm now running an AA exhaust thus do not need these anymore. Not sure how it happened, but one of the tips is very slightly out of round. I only noticed it when the tips were off my car and I was looking at all 4 next to each other. Otherwise it goes unnoticed when installed.
Bought these new for $250+ shipping. Asking $190 shipped in the us.