Any aftermarket alum radiators completely bolt-in replacements with no mods needed??
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This is a discussion on Any aftermarket alum radiators completely bolt-in replacements with no mods needed?? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I probably need to replace my stock radiator due to leak at ~80K+ miles. I do not need more cooling, ...

  1. #1
    Registered User mmiller2002's Avatar
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    Any aftermarket alum radiators completely bolt-in replacements with no mods needed??

    I probably need to replace my stock radiator due to leak at ~80K+ miles.

    I do not need more cooling, I just want a quality, price effective replacement that will bolt-up to everything like the stock unit including fans, mounts, tabs, etc. Prefer not thicker if possible.

    Please suggest products that you've had good experience with, or comment about bad experiences.

    Thanks for any advice.
    Mike
    '02 WRX Wagon
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    Moderator   Sasquatch's Avatar
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    A Koyo R2704 fits my 2004 nearly perfectly. It is thicker by nearly double. The only adjustment was trim a bit of the upper radiator hose.

    I'd recommend one.

    2004 OEM radiator is failing. How long do I have to replace?
    Last edited by Sasquatch; 09-20-2011 at 02:07 PM.
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    Registered User mmiller2002's Avatar
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    Thanks! Where'd you get the Koyo?
    '02 WRX Wagon
    RCE wagon springs
    Koni inserts
    Com-C Top Mounts
    Kartboy Endlinks
    Sedan rear swaybar
    Others little stuff

  5. #4
    Moderator   Sasquatch's Avatar
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    Quote Originally Posted by mmiller2002 View Post
    Thanks! Where'd you get the Koyo?
    You have a PM.
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  6. #5
    Registered User teflon_jones's Avatar
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    Why do you say your radiator is due to leak? 80k miles isn't a lot for a radiator if you've replaced the coolant regularly. It could last twice that. Why spend money on something you don't have to?
    Scott
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  7. #6
    Registered User mmiller2002's Avatar
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    Sorry, I meant due to the fact that its leaking.
    '02 WRX Wagon
    RCE wagon springs
    Koni inserts
    Com-C Top Mounts
    Kartboy Endlinks
    Sedan rear swaybar
    Others little stuff

  8. #7
    He simply abides. SD_GR's Avatar
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    I find it surprising your rad lasted 80K miles. I'm on my third radiator.
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    Registered User teflon_jones's Avatar
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    Quote Originally Posted by SD_GR View Post
    I find it surprising your rad lasted 80K miles. I'm on my third radiator.
    What are you doing? Filling your radiators with acid?
    Scott
    Past Subies - '11 STI Limited stage 1+ and '04 STi stage 2+
    '13 Wrangler Rubicon - custom front bumper w/12k lb winch & off-road lights, skid plates, diff guards, etc.
    '04 Porsche 911 Turbo GT2 clone 600 HP/TQ
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  10. #9
    He simply abides. SD_GR's Avatar
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    Quote Originally Posted by teflon_jones View Post
    What are you doing? Filling your radiators with acid?
    With love. Love is what makes a Subaru, a Subaru...
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    Man is a brute.... If you're cruel to him, he respects and fears you. If you're kind to him, he plucks your eyes out. Alexis Zorbas
    I lied. I cheated. I bribed men to cover the crimes of other men. I am an accessory to murder. But the most damning thing of all... I think I can live with it. And if I had to do it all over again - I would. Benjamin Sisko
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  11. #10
    Admiral Ackbar the 1st mycologist's Avatar
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    Quote Originally Posted by teflon_jones View Post
    What are you doing? Filling your radiators with acid?
    Plastic end caps - happens all the time. Mine went <80K (current mileage on my '03) and is the only thing that I've replaced because it was necessary in almost ten years.
    "From a little spark may burst a mighty flame." - Dante
    "The stitch is lost unless the thread is knotted." - Italian proverb

  12. #11
    He simply abides. SD_GR's Avatar
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    Quote Originally Posted by mycologist View Post
    Plastic end caps - happens all the time. Mine went <80K (current mileage on my '03) and is the only thing that I've replaced because it was necessary in almost ten years.
    My first one went at 6K. My second had been leaking for a while, and I had hoped it was the top hose instead, but it wasn't, plus the top hose fitting collapsed upon inspection and the neighbours are still probably wondering what demon got into me that morning, they must have been able to hear me blocks away. I tend to avoid swearing in English in the top of my lungs so as to not offend (school zone) but the language barrier may in itself have been troubling to them (imagine some guy screaming full blast 0800 or so on a weekday and you can't make out a word, is it better or worse?...). Good times. Went Koyo, OEM style.
    WRX Info Links, Courtesy TheJ
    Man is a brute.... If you're cruel to him, he respects and fears you. If you're kind to him, he plucks your eyes out. Alexis Zorbas
    I lied. I cheated. I bribed men to cover the crimes of other men. I am an accessory to murder. But the most damning thing of all... I think I can live with it. And if I had to do it all over again - I would. Benjamin Sisko
    DISCLAIMER: Opinions expressed are the author's alone and are inherently worthless.

  13. #12
    Registered User mmiller2002's Avatar
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    Quote Originally Posted by SD_GR View Post
    ...Went Koyo, OEM style.
    What do you mean by "OEM style"? Plastic?
    '02 WRX Wagon
    RCE wagon springs
    Koni inserts
    Com-C Top Mounts
    Kartboy Endlinks
    Sedan rear swaybar
    Others little stuff

  14. #13
    Registered User mmiller2002's Avatar
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    Any opinions on Mishimoto?

    Why would silicone top and bottom hoses be worth the extra $25+ cost over rubber?

    Thanks
    Last edited by mmiller2002; 09-21-2011 at 07:17 AM.
    '02 WRX Wagon
    RCE wagon springs
    Koni inserts
    Com-C Top Mounts
    Kartboy Endlinks
    Sedan rear swaybar
    Others little stuff

  15. #14
    Registered User scoobaru03's Avatar
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    What up man i put a mishimoto radiator in my 03 wrx theres a thread on it with pictures somewhere. You can keep the factory hoses you'll just have to cut them to compensate for the wideness i took off 1/4 in. maybe. I did it little by little till it fit good. You dont need the silicone hoses they just dress up the engine bay a little. Since i replaced it havent had any problems. Now on the down side you wont be able to put headers on your car unless you get the aluminum fan shroud from mishimoto. My opinion on koyo aluminum is the radiators do the same exact thing its just how much you want to spend. i think the koyo was almost an extra 150 dollars. long story short mishimoto is fine and you get a sticker!
    2003 Impreza WRX Sport Wagon

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  16. #15
    Admiral Ackbar the 1st mycologist's Avatar
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    I have had zero issues with the Mishimoto
    "From a little spark may burst a mighty flame." - Dante
    "The stitch is lost unless the thread is knotted." - Italian proverb

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