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Thread: 2 piston brake upgrade

  1. #1
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    2 piston brake upgrade

    I found this thread on another forum and wanted to share it here BBK: Brake upgrade Thread. Its basically a pretty easy and relatively cheap way to upgrade the front brakes to a 2-piston set up with the factory 12.6" rotors on the turbo Optimas.
    I already had the drilled and slotted rotors from Brake performance .com but saw this and thought I would give it a go !
    It seems the 2-pot calipers from a 2004-5 Hyundai XG350 are a direct fit to our cars, I bought the calipers from Rock Auto and plan on installing these in the very near future.
    I noticed that Concept III were advertising a BBK (2 piston) from Racing cube for $900 and it looks to me like these are the exact calipers they are using on that kit.

    I am assuming the kit also includes the rotors.
    I got my calipers for around $90 a piece (which includes a core charge) and the rotors are about $180 a set IIRC. Have to get some pads yet, but looking at around $50 for them.
    So, this is what those calipers look like out of the box



    As you can see the castings are a little "rough"...so, being the OCD type...I got to "cleaning" them up ! after a little treatment with a flapdisc and some grinding... followed by some painting ,decals and 2K clear coat..they now look like this.....I actually applied the clear coat over the decals so they should have no trouble peeling off or getting the edges caught while cleaning.


    I just hope they do actually fit after all this work !!.......I'll let you all know how this works out and the difference in performance once I get them installed.
    Could be an affordable alternative to the other BB kits that are out there for those who don't want to spend $1000.00 + to improve braking performance. (although, I got to say ,those BBK's do look darn good )
    I could have gone for a BBK in the front ,but my SXL has the electronic rear park brake ,so I'm not able to match up a BBK in the back.
    Like this, it still looks factory but hopefully will perform better !!...and I should have the same kit as the $900 Racing cube version.
    Will update after installation with pics and performance review.
    Last edited by Julio Kia; 05-31-2015 at 09:30 PM.

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  3. #2
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    Look forward to hearing your feedback on these, nice job with the decals.




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    Looks great, will be waiting on your review.
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    Once again, great work Julian!





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    Nice job!!!

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    Quote Originally Posted by K5 Optima Store View Post
    Once again, great work Julian!
    Quote Originally Posted by 2014OPTIMAPRIME View Post
    Nice job!!!
    Quote Originally Posted by Irongoats View Post
    Looks great, will be waiting on your review.
    Quote Originally Posted by Triple-K.Hybrid View Post
    Thats clean
    Quote Originally Posted by BRIO13 View Post
    Look forward to hearing your feedback on these, nice job with the decals.
    Thanks guys, now ordered my pads...Amazon.com: Akebono ACT955 ProACT Ultra-Premium Ceramic Brake Pad Set: Automotive Should have them Thursday so looking like a weekend project !

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    That's sweet! Mine are about to ship to your house right now! LOL
    Thought you already had drilled rotors and red painted calipers? You just change those up?
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  12. #9
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    Quote Originally Posted by JasonS View Post
    That's sweet! Mine are about to ship to your house right now! LOL
    Thought you already had drilled rotors and red painted calipers? You just change those up?
    I do,I am keeping the rotors but the OEM painted calipers are a single piston, these are a double piston so should be more efficient (I think the brake pad area may also be larger) the guys on the HK forum that have done this say it makes a big difference, although I think they were going from slightly smaller rotors to begin with....I'll be able to let you know after the weekend !

  13. #10
    OptimaForums Veteran carguy75's Avatar
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    Quote Originally Posted by Julio Kia View Post
    I found this thread on another forum and wanted to share it here BBK: Brake upgrade Thread. Its basically a pretty easy and relatively cheap way to upgrade the front brakes to a 2-piston set up with the factory 12.6" rotors on the turbo Optimas.
    I already had the drilled and slotted rotors from Brake performance .com but saw this and thought I would give it a go !
    It seems the 2-pot calipers from a 2004-5 Hyundai XG350 are a direct fit to our cars, I bought the calipers from Rock Auto and plan on installing these in the very near future.
    I noticed that Concept III were advertising a BBK (2 piston) from Racing cube for $900 and it looks to me like these are the exact calipers they are using on that kit.

    I am assuming the kit also includes the rotors.
    I got my calipers for around $90 a piece (which includes a core charge) and the rotors are about $180 a set IIRC. Have to get some pads yet, but looking at around $50 for them.
    So, this is what those calipers look like out of the box



    As you can see the castings are a little "rough"...so, being the OCD type...I got to "cleaning" them up ! after a little treatment with a flapdisc and some grinding... followed by some painting ,decals and 2K clear coat..they now look like this.....I actually applied the clear coat over the decals so they should have no trouble peeling off or getting the edges caught while cleaning.


    I just hope they do actually fit after all this work !!.......I'll let you all know how this works out and the difference in performance once I get them installed.
    Could be an affordable alternative to the other BB kits that are out there for those who don't want to spend $1000.00 + to improve braking performance. (although, I got to say ,those BBK's do look darn good )
    I could have gone for a BBK in the front ,but my SXL has the electronic rear park brake ,so I'm not able to match up a BBK in the back.
    Like this, it still looks factory but hopefully will perform better !!...and I should have the same kit as the $900 Racing cube version.
    Will update after installation with pics and performance review.
    Very interesting.

    The information that i found on the 2004 XG350 stated that the front rotors were 12.1in in diameter, so i am wondering how the calipers would fit the 12.6 rotors on our cars.

    I hope they work, because I am very interested in upgrading to the dual piston calipers if they fit our 12.6in rotors and if the Optima brake booster are up to job of pushing the dual pistons.

    FYI, the BBK calipers look similar to the XG350 calipers, but the faces of the two calipers are a bit different if you look closely in the photos so BBK maybe using dual pistons calipers from another Hyundai car model.

    Never mind I read the whole thread in the link and it seems to fit and work on our cars according to the OP.
    Last edited by carguy75; 06-02-2015 at 09:37 PM.
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