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458 : DIY rear bumper / exhaust removal?

Discussion in '458 Italia/488/F8' started by Alleykat, Jun 26, 2016.

  1. Alleykat

    Alleykat Karting

    Apr 2, 2009
    142
    TX
    Full Name:
    Alex
    I searched but didn't find anything. Does anyone have instructions for removing the rear bumper to take out the exhaust? Somewhere I read it could be done without bumper removal. I have a friend who wants me to work on his exhaust and I just wanted to get ahead before he brings the car to me.Thanks in advance.
     
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  3. 2012-458

    2012-458 Karting

    Nov 10, 2015
    83
    I was able to do the exhaust replacement without removing the rear bumper. It made it a bit more difficult but I didn't want to risk anything happening to the rear bumper upon removal.

    I installed a Novitec cat-back system and Fabspeed sport cats both at the same time. Just had to remove the rear diffuser and was able to access everything.
     
  4. RayJohns

    RayJohns F1 Veteran
    Silver Subscribed Owner

    May 21, 2006
    6,437
    West Coast
    Full Name:
    Ray Johns
    I have a 2000 page manual that shows how to take the 458 apart. I purchased it a while back. I'll PM you

    Ray
     
  5. Alleykat

    Alleykat Karting

    Apr 2, 2009
    142
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    Alex
    I just took the diffuser off and it does look straight forward. Did you undo the rods going thru the rubber hangars or just unbolt the 3 bolts on the hangar bracket ?
     
  6. Melvok

    Melvok F1 World Champ
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    Jul 25, 2008
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    #5 Melvok, Jul 11, 2016
    Last edited by a moderator: Sep 7, 2017
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  8. Alleykat

    Alleykat Karting

    Apr 2, 2009
    142
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    Alex
    I haven't took off the exhaust yet only the diffuser like in your pic lol. But I'm gonna give it a shot in a bit.It can't be harder than an R8 exhaust install. Now THAT is a pain in the butt!
     
  9. Melvok

    Melvok F1 World Champ
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    Jul 25, 2008
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    Thanx Alex, remember that 90% here will never do this job themselves ... :D
     
  10. 2012-458

    2012-458 Karting

    Nov 10, 2015
    83
    I undid the (3) bolts on the hanger brackets. 4 of the brackets were very easy. The last 2 that face the rear were very tight to get to but if you have a long enough wrench you can get to it.
     
  11. Alleykat

    Alleykat Karting

    Apr 2, 2009
    142
    TX
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    Alex
    #9 Alleykat, Jul 12, 2016
    Last edited by a moderator: Sep 7, 2017
    Well Melvok there we go!

    My thoughts on this process. Can you remove exhaust without removing bumper? Yes I'm sure but it will take some work. Removing the rear bumper is EASY. I have never removed a bumper so fast.You have to remove the fender liners of course but it's nothing major. On each bumper corner there is 3 bolts. There is no bolts in the middle of the bumper it just slides into a groove.

    Now the stock exhaust on the other hand was a pain.I don't know why Ferrari still uses slip on method with band clamp technology.When will they upgrade to vband? They also put tack welds on the band to hold it from falling off. In order to remove the exhaust I had also unbolt it's middle section. Making it into 3 pieces,letting you rotate the mufflers free.Taking off the mufflers was definitely the most time consuming.With bumper off now you can clean back there.
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  13. Alleykat

    Alleykat Karting

    Apr 2, 2009
    142
    TX
    Full Name:
    Alex
    #10 Alleykat, Jul 12, 2016
    Last edited by a moderator: Sep 7, 2017
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  14. Melvok

    Melvok F1 World Champ
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    Jul 25, 2008
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    #11 Melvok, Jul 13, 2016
    Last edited: Jul 13, 2016
    Amazingly simple it looks ! Thanx for this write-up ! ... (can you make a photo of these 3 hanging bolts in the bumper and chassis please ?)

    And now .... what will you install now ? Please also document this for us like you just did :D

    Are you looking for a louder system or higher pitch Alex ?
     
  15. Alleykat

    Alleykat Karting

    Apr 2, 2009
    142
    TX
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    Alex
    No problem Melvok I will take some more pictures soon. I am going to make an exhaust myself for it. Looking for the higher pitch. :)
     
  16. Alced75ldn

    Alced75ldn Rookie

    Oct 18, 2019
    1
    Full Name:
    Aldn
    Hello Ray,
    Hope you are doing well,

    could you please send me the manual ? I have to change the outter fin of the rear bumper diffuser and I d like to check how to
    Do it .

    thanks
    Regards
     
  17. FerrariCognoscenti

    FerrariCognoscenti Formula Junior

    Jan 19, 2021
    275
    Are these the bolts to remove the rear diffuser? I want to plug the vaccuum tube to keep the exhaust valves always open. All I need to do is remove the rear diffuser right?

    can someone post or send me a picture of the manual that shows how to remove the rear diffuser? Thank you so much!
     
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  18. Eds458

    Eds458 Rookie

    Jan 24, 2020
    27
    Northern California
    Full Name:
    Edward Lagunte
    Those are the bolts to remove the rear diffuser. 6 bolts at the rear are 4mm allen head and 6 at the front are regular 10mm bolts. Tightening torque spec is 8.5nm


    Sent from my iPhone using FerrariChat.com mobile app
     
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  19. Melvok

    Melvok F1 World Champ
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    Jul 25, 2008
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    Absolutely WRONG, thinking it is a 430 !

    In the 458 it is done electrically …

    Unplug the two electric connectors. That is what the remote controllers do …

    Do you know what I mean ?
     
  20. Melvok

    Melvok F1 World Champ
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    Jul 25, 2008
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  21. FerrariCognoscenti

    FerrariCognoscenti Formula Junior

    Jan 19, 2021
    275
  22. Corradosv

    Corradosv Karting

    Oct 17, 2016
    120
    Monaco MC
    Hi: definitely you can plug the vacuum hoses without disconnecting the solenoids, to keep the valves always open, they are in fact a "fail open" design.
    Check this:
    https://www.ferrarichat.com/forum/threads/can-someone-explain-the-stock-458-valve-operation-installing-a-forza-controller.619296/
    You can even trigger error codes by unplugging the solenoids; I am not sure as I didn't do that personally but I guarantee you won't get any code by plugging the vacuum hoses. And yes: you can do that by just removing the diffuser, no need to jack the car.
    Hope it helps.
     
  23. FerrariCognoscenti

    FerrariCognoscenti Formula Junior

    Jan 19, 2021
    275
    Thanks a lot- What did you use to plug the hose and did you secure it with a zip tie or something similar?


    Sent from my iPhone using Tapatalk
     
  24. Mikael-F360

    Mikael-F360 Formula Junior

    Apr 3, 2017
    688
    Finland
    Full Name:
    Mikael E.
    I plugged the hose ends in my 360 with M6 screws! They were about 15mm long. They fit inside the hoses perfectly. You don't need any zip ties or anything because the threads will hold.
     

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