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S4 B9 Stage 1

Gurd. Jun 26, 2020

  1. Gurd.

    Gurd. Registered User

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    Hi All,

    Looking to tune to stage 1 on my S4 B9, is it only ABT that do a tune that will not affect your warranty or does anyone know of an alternative company?

    Cheers
     
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  3. Kondax

    Kondax Well-Known Member Gold Supporter

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    If you want a tuning box (which is ABT), get a JB4.

    Any tune will affect warranty, it's only tuning boxes that you can get away with without throwing a TD1.
     
  4. Gurd.

    Gurd. Registered User

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    Thank you for the reply BUT apparently (and i have done my research) the ABT Tune does not affect your warranty as it is a separate module...quote from ABT:

    We offer ABT 'AEC' (ABT Engine Controller) this is an additional engine control module, which works in conjunction with the original VW/Audi unit.
    The huge advantage of this is there is no modification to the vehicle, all of the tuning data is contained within the ABT AEC.

    But i will look at the JB4...cheers
     
  5. Kondax

    Kondax Well-Known Member Gold Supporter

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    Yes, that is a tuning box, not a tune.
     
  6. Gurd.

    Gurd. Registered User

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    Sorry but kick me if i am being thick as i am new to the "tuning" arena but are you saying that the JB4Race Chip is a better option than the ABT tune?
     
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  7. Kondax

    Kondax Well-Known Member Gold Supporter

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    Yes, the JB4 for the B9 S4 is 100% better. I'm currently using it with a larger turbo.
     
  8. Gurd.

    Gurd. Registered User

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    Kondax, i just want a bit more HP and not mess about with anything else, do you think the JB4 will be sufficient for what i am looking to do? Also, is it easy to install?
     
  9. Dippy

    Dippy Registered User

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    Gurd, I don't know enough about the JB4 and the ABT solutions to compare them, but I can provide general advice - sorry if you already know this.
    The principle of increasing performance on a turbo engine is the same - allow more of the boost from the turbo to reach the engine and add more fuelling. The perfect way to do this is the same way that Audi has done it - using the maps inside the ECU. Companies like APR can remap the B9 S4 ECU in order to provide a "complete" solution to increased performance. But obviously a remapped ECU is easily noticeable and so can prevent certain warranty claims being accepted.

    One alternative is to use a 2nd ECU as a "piggy-back" over the main ECU. If the ABT solution you are looking at is expensive, then it is probably this.

    However there are other "piggy back" solutions which are simpler and cheaper, and I think the JB4 is such a device. The principle is to re-route signals from sensors (mainly pressure) through the box. The box will then send a "fake" signal to the ECU, being a lower pressure than reality. This means that the ECU will unknowingly allow the boost from the turbo to exceed the design level. More air needs more fuel and the best solution is for the box to also interfere with the way the ECU controls fuel. However some of the simplest boxes just rely on the ECU to detect from the exhaust that the engine is running lean and so it will add more fuel to compensate.

    I visit Audizine regularly and there are plenty of folks there who rate the JB4, so much that some of them are unimpressed with the benefits of going to the more "complete" solution that APR is now offering.
     
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  10. Gurd.

    Gurd. Registered User

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    WOW!!! Dippy you are a legend, thanks mate that is really helpful & yes i have also looked at APR and that, tbh was what a lot of friends were saying but its just the warranty thing!! I may wait until next March and go with JB4, ABT quoted £2K which i don't mind paying but as long as it gives me what i am looking for which simply is more HP. I keep hearing that MRC is another option....any views on MRC, i noticed that you have the Stage 2 mate?
     
  11. Kondax

    Kondax Well-Known Member Gold Supporter

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    ABT is just honestly a massive scam for that money, I'll never recommend it over a JB4.

    APR do offer Stage 1 with warranty but it costs a fortune and it's their lowest power option, so a bit pointless.

    I can't personality recommend MRC purely because I messaged them and they never replied for a month. Last I checked they don't have any tunes available for the B9 S4.

    I'm currently Stage 3, my signature is outdated.

    Also re: installation, yeah, takes about 20 minutes.
     
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  13. Gurd.

    Gurd. Registered User

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    Kondax, LOL!!! I did have the same feeling...2K for a piggy back??? But i suppose you are just paying for the name! I am concerned regarding the warranty, don't want to give Audi any reason to point the finger at me if anything goes wrong!!! So probably wait until March next year and you never know, something new will pop up.

    Really appreciate your views chaps, it has really helped.
     
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  14. Kondax

    Kondax Well-Known Member Gold Supporter

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    Of course, no worries :)
     
  15. Dippy

    Dippy Registered User

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    I am fairly sure that APR plus is only available to US customers.
    ABT is definitely a niche market. IIRC it has TUV approval and possibly allows German customers to keep their warranty intact.

    @Gurd, without doubt your key concern should be warranty. I waiting for the warranty on my B5 S4 to expire before I tuned it, but IIRC it was many more years after than before anything went wrong on the car which could have been a warranty claim if I had extended it. But thinking back I don't think I would have got my money's worth from an extended warranty. So my confidence was better for my B8.5 and I would have had it tuned after only a year (although it was nearly 2 years in fact because my car had a new ECU which had not yet been cracked). As it turned out, I did need to make a warranty claim before it expired, and that claim was honoured by the dealer in full knowledge of the tune, because the item in question had nothing to do with the engine or transmission.

    I am fairly risk adverse and not one to agree that a tune is safe until several years have passed. The B9 S4 ECU was only recently hacked and tuners such as APR have only just started rolling out their solutions. So IMHO there is still a risk. The B9 engine was a new design and it does incorporate the miller cycle and has a relatively high compression ratio so it can't be said that there are no risks with tuning it. So if I were in your place I would also be hesitant about tuning. I think I'd go with the JB4 myself, knowing that if anything happened I could remove it and pretend that the car had not been modified.
     

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