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Thread: BW k03 or k04

  1. #1
    Registered Member One Ring
    Join Date
    Nov 05 2011
    AZ Member #
    83495
    Location
    Londonderry, NH

    BW k03 or k04

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    Have 174k on my original k03 in my 00 1.8tqm. Doing a timing belt over the next couple weeks and figured it would be a good time to upgrade to a low mileage k04 or replace it with a low mileage k03. I only really trust a be, Iíve had bad luck with other k03ís when trying to cheap out.
    Local to Boston area, willing to pick up locally or pay shipping. Budget is limited so post or pm me what you have and the price.

    Also looking for a pair of s4 headlight housings for cheap if anyone has any. A4 housing are already retrofitted but Iíd rather have the s4 housings in for cheap money if thatís a possibility.

  2. #2
    Established Member Two Rings
    Join Date
    Jun 07 2012
    AZ Member #
    94813
    Location
    Bernville pa

    S4 headlight? U mean hid headlights? 2.8 came with them

  3. #3
    Registered Member One Ring
    Join Date
    Nov 05 2011
    AZ Member #
    83495
    Location
    Londonderry, NH

    Quote Originally Posted by Trickiericky View Post
    S4 headlight? U mean hid headlights? 2.8 came with them
    I didnít know that. But yes, the factory HID housing is what Iím looking for, for the right price of course. My retrofitted ones work fine

  4. #4
    Active Member Two Rings QRSpecV's Avatar
    Join Date
    Sep 04 2016
    AZ Member #
    380106
    My Garage
    2000 Audi A4 Quattro, 2016 BMW 528i, 2003 BMW X5 4.6is
    Location
    Tigard, OR

    Be aware going K04 requires a tune and a lot of supporting mods. That includes a better clutch too. I thought about going this route but all the supporting mods killed me before starting the upgrade.

  5. #5
    Established Member Two Rings
    Join Date
    Jun 04 2015
    AZ Member #
    335857
    Location
    Danbury CT
    Items for Sale

    I have a k03 that is still in the engine. It's out of a 2000 atw with 120k miles. Ill let it go for $75 plus shipping if you're interested.

  6. #6
    Active Member One Ring
    Join Date
    Nov 05 2017
    AZ Member #
    409434
    Location
    Windsor, ON, Canada

    I have a K03 that has 30,000ish kms on it. no shaft play. $125 shipped

  7. #7
    Established Member Three Rings Joe Jr.'s Avatar
    Join Date
    Mar 09 2017
    AZ Member #
    395072
    Location
    Longmont, CO

    Quote Originally Posted by QRSpecV View Post
    Be aware going K04 requires a tune and a lot of supporting mods. That includes a better clutch too. I thought about going this route but all the supporting mods killed me before starting the upgrade.
    I have a K04 on my stock atw. Runs fine. Doesn't have to be tuned. Only if you want more hp. The computer adjusted fine on mine and does feel stronger than the K03. Just saying you can do it and it will run fine. Had mine on for 8k miles now.
    2000 Avant A4 1.8TQA
    2001 A4 1.8TQM
    2002 VW TDI 5spd

  8. #8
    Active Member Two Rings QRSpecV's Avatar
    Join Date
    Sep 04 2016
    AZ Member #
    380106
    My Garage
    2000 Audi A4 Quattro, 2016 BMW 528i, 2003 BMW X5 4.6is
    Location
    Tigard, OR

    Why go k04 if you don't want more hp? A good k04 is $500. That's a chunk of change for a turbo that "feels stronger".

  9. #9
    Established Member Three Rings Joe Jr.'s Avatar
    Join Date
    Mar 09 2017
    AZ Member #
    395072
    Location
    Longmont, CO

    Quote Originally Posted by QRSpecV View Post
    Why go k04 if you don't want more hp? A good k04 is $500. That's a chunk of change for a turbo that "feels stronger".
    I knew you'd ask. my k03 blew the coolant line that's on the bottom and i was in a bind, needed a quick replacement so i bought a Stigan k04 $350 turbo and threw it on thinking i'd replace it with a BW, but its run great and no issues like i said. On a motor i'd want to be strong/tuned no i wouldn't use the $350 k04. And it is stronger, the Tiptronic was a dog with that stock k03 now its actually fun to drive.
    2000 Avant A4 1.8TQA
    2001 A4 1.8TQM
    2002 VW TDI 5spd



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