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  1. #1
    Established Member Two Rings 12adam12's Avatar
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    Brake upgrade for my B8 A5

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    I need to do rotors and pads on my A5 and was wondering what bolt on brakes from other models will improve the performance at little additional cost?

    S5,RS5,Q5,any of the 4s?
    B8 only or 8.5 okay too?
    Any car makes Other than Audi?
    Fronts only or front and rear necessary

    If Iím missing a list somewhere already could someone point it out to me?

    Thanks!





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  2. #2
    Established Member Two Rings 12adam12's Avatar
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    subscribing

  3. #3
    Established Member Four Rings wkhanna's Avatar
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    anything on B8 or 8.5, afaik
    Q5 3.0T works...direct bolt-on i believe (no carrier bracket required)

    and there is a porche P/N, too... LINK

    look around, they are not too expensive new..... LINK




    Last edited by wkhanna; 01-07-2019 at 01:22 PM.
    Billy

    Practicing Curmudgeon & Audio Snob

    2011 A5 2.0T Old Man Project
    2011 A4 quattro 2.0t (The Wife's)
    1983 Porsche 944 (Modified)
    1985 BWM K100RS (since new - Heavily Modified)
    1971 Moto Guzzi Elderodo
    Avatar Chart

  4. #4
    Established Member Four Rings wkhanna's Avatar
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    My Garage
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    btw, i put used (ePray) S5 calipers/carrier brackets ($300) & 344.6mm F & 330.0mm R stoptech rotors & sport pads all around on my A5.

    could not be more pleased with the performance.
    all together, with F/R S5 cals, fluid, SS lines, F/R rotors & pads it came in a little over $1k, the labor was mine.... ; )

    the A5 calipers work with the lager dia rotors from the S5, but you need to have the S5 carrier brackets that space the cal further from the spindle center....
    make sure your wheels will fit, too.... ; )

    Check with Mops@Nemisis he got me the best price, but more importantly, the best advice.....

    Mops@NemesisAutosport.com
    Last edited by wkhanna; 01-07-2019 at 01:27 PM.
    Billy

    Practicing Curmudgeon & Audio Snob

    2011 A5 2.0T Old Man Project
    2011 A4 quattro 2.0t (The Wife's)
    1983 Porsche 944 (Modified)
    1985 BWM K100RS (since new - Heavily Modified)
    1971 Moto Guzzi Elderodo
    Avatar Chart

  5. #5
    Established Member Two Rings 12adam12's Avatar
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    new york

    Iím hoping to be able to keep my stock 18Ē wheels with 12mm spacers.


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  6. #6
    Established Member Four Rings wkhanna's Avatar
    Join Date
    May 12 2017
    AZ Member #
    399355
    My Garage
    needs cleaned
    Location
    Land of Archaic Anachronisms

    Quote Originally Posted by 12adam12 View Post
    Iím hoping to be able to keep my stock 18Ē wheels with 12mm spacers.
    i believe you should be fine with 18's if you go with 344.6mm (same as S5) up front.

    @Mops@Nemesis
    Last edited by wkhanna; 01-08-2019 at 06:00 AM.
    Billy

    Practicing Curmudgeon & Audio Snob

    2011 A5 2.0T Old Man Project
    2011 A4 quattro 2.0t (The Wife's)
    1983 Porsche 944 (Modified)
    1985 BWM K100RS (since new - Heavily Modified)
    1971 Moto Guzzi Elderodo
    Avatar Chart

  7. #7
    Established Member Two Rings 12adam12's Avatar
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    Jun 04 2017
    AZ Member #
    400541
    Location
    new york

    I found Q5 345mm fronts for $250/pair and lots of S5 fronts for $150-200/pair Is there any reason to prefer one over the other?

  8. #8
    Established Member Two Rings 12adam12's Avatar
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    Jun 04 2017
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    And do I have to do the fronts and rears or would it be okay to stick with the stock A5 300mm rears?

  9. #9
    Established Member Four Rings wkhanna's Avatar
    Join Date
    May 12 2017
    AZ Member #
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    My Garage
    needs cleaned
    Location
    Land of Archaic Anachronisms

    Quote Originally Posted by 12adam12 View Post
    I found Q5 345mm fronts for $250/pair and lots of S5 fronts for $150-200/pair Is there any reason to prefer one over the other?
    performance-wise.... yes.
    the Q5 are one-piece, the S5 are two-piece (they flex more)

    if you do get the S5 cals, be sure they have the carriers with them.


    Quote Originally Posted by 12adam12 View Post
    And do I have to do the fronts and rears or would it be okay to stick with the stock A5 300mm rears?
    it is ok to keep the 300 rears, but not perfect.
    rears only provide ~20% of your overall braking, so the difference in having the smaller rotor from the A5 is very slight & not really noticeable or a safety issue for street use.

    check with Mops & make sure the SQ are a direct bolt-up (no carriers)
    Billy

    Practicing Curmudgeon & Audio Snob

    2011 A5 2.0T Old Man Project
    2011 A4 quattro 2.0t (The Wife's)
    1983 Porsche 944 (Modified)
    1985 BWM K100RS (since new - Heavily Modified)
    1971 Moto Guzzi Elderodo
    Avatar Chart

  10. #10
    Established Member Four Rings wkhanna's Avatar
    Join Date
    May 12 2017
    AZ Member #
    399355
    My Garage
    needs cleaned
    Location
    Land of Archaic Anachronisms

    @12adam12

    any updates?
    Billy

    Practicing Curmudgeon & Audio Snob

    2011 A5 2.0T Old Man Project
    2011 A4 quattro 2.0t (The Wife's)
    1983 Porsche 944 (Modified)
    1985 BWM K100RS (since new - Heavily Modified)
    1971 Moto Guzzi Elderodo
    Avatar Chart

  11. #11
    Established Member Two Rings 12adam12's Avatar
    Join Date
    Jun 04 2017
    AZ Member #
    400541
    Location
    new york

    Decided to just go with better rotors and pads on my stock calipers this time to save a few bucks. Next brake job Iíll upgrade calipers.



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