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  1. Meaning of the K03 K04 or K3 K4 and 2x2 interface adapters for VCDS

    Volkswagen Passat B5 Discussion
    Sometimes when reading stuff I come across those terms, any suggestion?
  2. Discussion: K04 on this grandpa or Not...

    Volkswagen Passat B5 Discussion
    So... This is not confirmed yet, but I think my ol' original K03 after last few years of abuse is finally failing. And I say finally cuz it lasted 212k miles. I've been running a unitronic Stage 2 for couple of years now, and the car being this old i expected my turbo to give up sooner or later...
  3. Want a FREE HPA K04 Turbo Conversion Kit for your B6 Passat 2.0T? Deadline 12/8/2017

    Volkswagen Passat B6 Discussion
    We've partnered with HPA Motorsports to make your winter build a whole lot cooler, and we're giving away some epic parts to do that. This could be yours. For FREE. Seriously Free no strings attached....well a few... you have to play along. "THE RULES" Before Friday, December 8th, 2017...
  4. K04 0015 on COMPLETELY STOCK ecu?

    Volkswagen Passat B5 Discussion
    1999 Passat 1.8t AEB 3" Test Pipe with Custom 2.5" Exhuast **Only Modification** I'm finally upgrading my turbo and have been searching through forums for the past couple of days for a straight forward answer but having no luck :banghead: people saying you can, then others saying you cant and...
  5. WTB K04 turbo for B5.5 1.8t

    Parts For Sale
    Looking to buy a K04 turbo set up for my 2003 wagon 1.8t.
  6. Ebay K04 Turbo???

    Volkswagen Passat B5 Discussion
    Was contemplating on switching out to the K04 Turbo. Found to seem to be possible legit ones. Any luck from these? NEW TURBO KIT W/ UPGRADE K04-15 TURBOCHARGER & GASKETS FOR AUDI A4 & VW PASSAT | eBay KO4-015 AUDI A4 A6 VW PASSAT 1.8T UPGRADE 5304 988 0015 K04-015X | eBay
  7. F/S 1999 k04 5speed Passat Wagon -- $1200

    Vehicles For Sale
    Hi All, We're putting our Passat wagon up for sale. It's got many new and upgraded parts and the car drives well. The drivetrain is solid, but we need something smaller with 4 wheel drive. We were the first owners. The good: Borg Warner k04-015 turbo put on at 164k miles Apkol upgraded side...
  8. FS: 2003 Passat GLS Wagon Fresco Green 5spd w/t K04 on Portsmouth, NH

    Vehicles For Sale
    Sold image by ferraga, on Flickr image by ferraga, on Flickr image by ferraga, on Flickr image by ferraga, on Flickr
  9. Need opinions about my K04 upgrade

    Volkswagen Passat B5 Discussion
    While I have my motor out to replace I plan on putting a K04 on it. Not sure which injectors to go with (500cc?) and which tune can deal with all of that.. Also want to delete cat but don't need a check engine light... Of course while motor is out she will get a good sludge cleaning, new gaskets...
  10. K04 023

    Volkswagen Passat B5 Discussion
    Would an 023 fit my awt passat? I currently have stage 1 map with an 015 turbo.
  11. what k04 turbo should i get | passat 1.8t 97

    New Member Introductions
    i want to replace my turbo for the k04. what kind should i buy? in terms of good price and good product. do i need to make other downpipe or the one that was with the OEM k03 will fit?
  12. GIAC Chipped 2005 VW Passat with K04 Turbo hardware for sale Atlanta, GA area

    Vehicles For Sale
    I have a 2005 VW Passat Automatic transmission with 1.8T engine with K04 Turbo installed. It is a GLS with leather seats and the montreal 17 inch rims It is also chipped with the GIAC software loaded. The car has 207K miles, runs great but needs a new water pump and timing belt. The interior...
  13. 2009 MVK GTI APR K04 Half Cage

    Vehicles For Sale
    2009 VW GTI Need to get rid of one project, so I can start the next! Email me directly for faster responses!
  14. 99 passat wagon k04 coils many extras...bent front frame. runs great

    Vehicles For Sale
    So i was driving my car on 287 when i see a milled road with a 2.5" line of pavement. Hit it doing 80. Twisted front frame. Car still runs gr3at. Pass3nger side door rubs front fender. Im goingg to be ttrading in my wagon. I'mgoing to give ssomeone an option to buy it. I can't part Iit...
  15. What do you guys think about these K04 turbos on ebay?

    Volkswagen Passat B5 Discussion
    I was looking around on ebay earlier today. found out these two K04 Turbos. one of them have around 90 sold, and the other had around 150 sold. so i figure they must not so bad to have so many of them sold. but the price just shocked me. i saw the same kit was $1100 on ECS tuning. and these...
  16. K04 Turbo upgrade! Looking for your feedback!

    Volkswagen Passat B5 Discussion
    Hey guys so basically heres the run down, I am soon going to in the midst of installing my k04 turbo on my AEB 99 1.8t. The reason Im replacing is because I have little none boost coming from the k03. When I rev, I get no pull at all car feels like its running on 60 horsepower. When pushing the...
  17. Tekadan's 1.8t K03 to K04-15 Build Log

    B5 Garage
    Hi Guys, I know I only have a few posts on here, but I would like to do a few things for the community, and furthermore myself. As you can tell from the title I would like to bring my almost completely stock car up to a k04 build. With that being said I would like to sort of use this post as a...
  18. k04 turbo surge and injectors issue

    Volkswagen Passat B5 Discussion
    Recently put a k04-015 turbo and atp manifold on my car. It's a 2003 awm motor. Currently I am using the GIAC Xplus tune but want to upgrade to the X3ft04 tune for it eventually. There is not any tuning shops around me so I have to ship out my ecu and it takes about 2 weeks...... Right now it...
  19. K04 upgrade help!

    Volkswagen Passat B5 Discussion
    Hey guys! Looking at upgrading my turbo to a k04 I found a kit from ecs tuning but it's just turbo and manifold. I'm wondering I anyone knows where I can get a good tune for an aeb?? Also exhaust that doesn't sound ricey but still a good affordable exhaust?? Do I need bigger injectors? I have...
  20. k04 or not??

    Volkswagen Passat B5 Discussion
    Just bought a borg warner k04-0015 turbo but not sure if I was sent the right one. It doesnt say k04 anywhere on it and its made in china. Heres some pictures of it. Anyone help verify if its right?