Question?
by Anonymous on January 21, 2019
The Bottom ribs on the MEISTERSATZ/Topran spark plug tubes that were in my 2007 e70 4.8i were not as deep as the OEM units. I bought the x5 used but... These were installed on cylinders 5-8 where 1-4 still had the OEM units. The OEM units looked older based on the staining but these had much larger leaks. The Febi units that I ordered were butter than these but turned out to also not look as good as the OEM units. If you look closely you can see how the ribs are very shallow on these vs the others. -Rich