I have a stupid question. I have a K24 (Blitz) Turbo and have had the seals changed (rebuild kit). It stopped smoking for about 6 months, but started to gradually smoke again (white). I am hearing that I will have to change out the CHRA (center cartridge) to fix it properly. I have made the mistake of buying a K24 from a Porche or Audi and the housing was different so that the flanges wouldn't bolt up. The Porsche K24 is rounded at the top and bottom of the flange. Anyways, do you think that I would be able to use the Porsche K24 center cartridge in my Blitz K24? Seems like the only difference is the flange. It would be much appreciated if someone could help this newbie. Thanks Guys.