Here is an update about the PMG Technik manifold with new reinforced swirl flaps I installed 6 months ago:
All six flaps developed leaks around the axles and fittings. Five months and 15000km ran. Whistling of air escaping around the flaps was heard later. I had to have the manifold removed and installed a new OEM manifold with original swirl flaps. The "old" manifold has just been picked up by UPS to be inspected by PMG. I will update after I have news from them.
So the PMG option seems not so good now. I was very optimistic about it at first.
Last edited by mitocross; 09-03-2019 at 12:57 AM.