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  1. I

    Bosio Power Plus 683 injector nozzles

    I am looking for at least two of these nozzles, preferable NOS. They fit the AFB v6 2.5 TDI injectors. The injector shop is having trouble getting two of them to flow correctly. A couple of extra would be good to have. Thanks,
  2. I

    Audi 2.5 TDI conversion into '01 A4Q Avant

    Update. The car just turned 30k miles on the conversion. The exhaust on this car has always been a bit stinky. Last week I was driving when I heard a loud pop. The car then ran really rough with a loud acoustic thumping sound. You could really hear it from the intake area with the...
  3. I

    Audi 2.5 TDI conversion into '01 A4Q Avant

    Further exhaust cleanup To improve the exhaust further I removed the center muffler (which weighs some 25 lbs) and replaced it with an aftermarket DPF. This filter does not require the computer generated regeneration, but does it passively when hot enough and run long enough at higher rpms -...
  4. I

    Audi 2.5 TDI conversion into '01 A4Q Avant

    5,000 mile update I have not posted in awhile. So far I have managed 5k fairly trouble free miles. Recently the old fan blade broke apart damaging the radiator and hood insulation. I just finished replacing these items. The car is a bit stinky when running so I wanted to try and clean up...
  5. AFB - PreCat installed

    AFB - PreCat installed

  6. AFB - PreCat & Turbo elbow

    AFB - PreCat & Turbo elbow

  7. FrontCats

    FrontCats

  8. DownpipesComparison

    DownpipesComparison

  9. CenterMufflerComp

    CenterMufflerComp

  10. CenterDPF

    CenterDPF

  11. I

    Audi 2.5 TDI conversion into '01 A4Q Avant

    I got my ECU back from the tuner. "Jetta ,97" on the forum did the tuning - very fast turnaround and fair price. Car runs great now. More power to go along with the larger injector nozzles. Now its time to put some miles on and fix the last few non-TDI items (radio/speakers, etc)...
  12. I

    Audi 2.5 TDI conversion into '01 A4Q Avant

    Update - I have about 200 miles on the setup. Running much better now. Still smells a bit too much of diesel in the exhaust. The engine also seems a bit loader than I expected. I currently have the ECU out for tuning to match up with the larger injector nozzles. Recent work/adjustments...
  13. AFB - Turbo actuators

    AFB - Turbo actuators

  14. AFB -Open head

    AFB -Open head

  15. IntercoolersNew1

    IntercoolersNew1

  16. AFB - Intercoolers

    AFB - Intercoolers

  17. AFB - Cam bearings

    AFB - Cam bearings

  18. AFB - Cams

    AFB - Cams

  19. I

    Audi 2.5 TDI conversion into '01 A4Q Avant

    Update - Received the rebuilt injection pump from Diesel Bob in the UK. Two hours later the beast was installed. Engine runs much better and actually revs up like it should. DTC codes have gone. Still smokes too much. Waiting on some new intercoolers (one looks like it is leaking oil, so...
  20. I

    Audi 2.5 TDI conversion into '01 A4Q Avant

    k-harley - The trickiest part is getting the engine (block & heads). Most everything else is available new from a few European sources and used on eBay.de or eBay.co.uk. I suspect most US based TDI shops should be able to figure out this engine. However, with all the new parts it is not...
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