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  1. WTB/WTT Section
    need cast iron housing for KO3 ,discovered cracked fragment in mine ready to fall out,turbo can be toast
  2. WTB/WTT Section
    looking for ko3 turbo to rebuild as winter project,PM with details,thanks,Chief
  3. Volkswagen Passat B5 Discussion
    I'm new to the world of turbos and I have a 2003 Passat. I Dont hear any noise in 1st or 2nd gear (stick shift) but I hear like a whining noise from 3rd - 5th gear. Its kind of high pitch but it doesn't last for when I get past 3k rpms. Does that sound like something a turbo should be doing?
  4. Parts For Sale
    8 ko3 turbos, a6 strut bars, mafs, n75s etc hey guys I haven't been on here in a while because w my work and my audi and Passat I have no time, but ive accumulated a bunch of good oem replacement turbos from work as an auto dismantler and figured someone could use them. they all have minimal...
  5. B5 Garage
    I'm looking into rebuilding my ko3 with a k03/4 hybrid. I'm running APR's stage one chip. I was wondering if anyone had experience with running this slightly upgraded turbo on there k03 software. I don't want to be going into limp mode every 2 minutes. My car runs great with all of its mods and...
  6. Volkswagen Passat B5 Discussion
    VW PASSAT12/02 AWM engine code automatic ,the turbo is Ko3 s or ko3 ? THANKS
    ko3
  7. Volkswagen Passat B5 Discussion
    thanks either way
  8. B5 Garage
    im making a custom oil feed line for a stock ko3, the orignial line looks to be the same diameter as 4an stainless braided line, but the hole in all the fittings i see seem to be a hair smaller than the hose diameter, im not sure that would be a big problem or not, but i dont want to chance...
  9. Volkswagen Passat B5 Discussion
    I have a 99 AEB engine. I want to go with GIAC for tuning but I cannot find that software for anything older than a 2001 on their site. Can I run the 2001+ software or what do I need to do?
  10. WTB/WTT Section
    Looking for a ko3 turbo for a 98 passat. Email me if you have one your looking to part with. Address is [email protected] Thanks
  11. Parts For Sale
    I have gone frankenturbo and have the stock k03, manifold, forge tip, and stock maf housing, injectors, and engine cover. k03 has 80543 miles on it was told wastgate was bad so i got frankenturbo had the same problem then found a boost leak in my n75 line. so this possibley needs work $75 plus...
  12. Parts For Sale
    SOLD ( in record time? ) :driving:
  13. Volkswagen Passat B5 Discussion
    I'm driving a passat b5.5 steptronic with a 1.8t VAG AWT engine the engine comes with a KO3 turbo charger and minor mods such as 2.5" cat back exhaust, drop in air filter and 1 heat range cooler plugs NGK BKR7E Due to the design of the stock piping, I've decided the best way to go for it would...
  14. WTB/WTT Section
    Edit: Found One Hello, I'm looking to buy a working stock KO3 turbo to replace the one in my girlfriend's 1999 B5 1.8T. I'd need the wastegate actuator, too. I'm in 80303 and will pay shipping. If you can get it to me quick (i.e. by Friday or Monday) I'll pay for faster shipping. Post or PM...
  15. WTB/WTT Section
    UPDATE: Found one. Thanks for the offers! I'm looking for a used working Turbo from a stock B5 1.8t to go on a 1998 B5 (AEB Engine) The Turbo must work and have a good Flapper Valve. A working Wastegate Actuator is prefered, but not required. Anyone have a working unit they pulled for an...
  16. B5 Garage
    Will a turbo of a 2.7t s4 fit on a 99 passat w/o any modifications?
  17. Volkswagen Passat B5 Discussion
    Does anyone know the size of the exhaust turbine one the KO3? I am trying to work up a good hybrid when mine gets to the rebuild stage.
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