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Thread: 39459 vs 39516

  1. #1
    Old Timer fiend's Avatar
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    39459 vs 39516

    I have a 2010 JKU. The stock exhaust has seen better days.

    Trying to figure out the difference between the 39516 and 39459 kits. The DynoMax catalog says the 39459 is for vehicles with Rockcrawler-type suspension. What does that mean?

    IMG_1842.jpgIMG_1843.jpg


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  2. #2
    Knows a Thing or Two MericaMade's Avatar
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    I believe the rock crawler kit just means the pipe bends higher over the rear axel and more clearance then stock being tucked up a little higher.

    The other kit dumps before the axle.

  3. #3
    Been Around the Block cmireles's Avatar
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    Quote Originally Posted by MericaMade View Post
    I believe the rock crawler kit just means the pipe bends higher over the rear axel and more clearance then stock being tucked up a little higher.

    The other kit dumps before the axle.
    This^^

    One dumps before the axle (39516) and one dumps after (rock crawler)


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  4. #4
    Administrator wayoflife's Avatar
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    Quote Originally Posted by fiend View Post
    I have a 2010 JKU. The stock exhaust has seen better days.

    Trying to figure out the difference between the 39516 and 39459 kits. The DynoMax catalog says the 39459 is for vehicles with Rockcrawler-type suspension. What does that mean?
    I'm pretty sure I ran the 39516 on Moby back in the day and I LOVED how it sounded. What I can tell you is that it's designed to dump just in front of the rear axle as opposed to going all the way out to the back. This is helpful with something like an EVO Lever System.

  5. #5
    Old Timer fiend's Avatar
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    Quote Originally Posted by MericaMade View Post
    I believe the rock crawler kit just means the pipe bends higher over the rear axel and more clearance then stock being tucked up a little higher.

    The other kit dumps before the axle.
    Quote Originally Posted by cmireles View Post
    This^^

    One dumps before the axle (39516) and one dumps after (rock crawler)


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    Quote Originally Posted by wayoflife View Post
    I'm pretty sure I ran the 39516 on Moby back in the day and I LOVED how it sounded. What I can tell you is that it's designed to dump just in front of the rear axle as opposed to going all the way out to the back. This is helpful with something like an EVO Lever System.
    Thanks for the helpful responses everyone.


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  6. #6
    Advertiser DynoMax Exhaust's Avatar
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    These guys are right!
    Sorry I missed this

  7. #7
    Old Timer fiend's Avatar
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    Installed the kit yesterday. Didn’t have time to test drive until this morning. The whole things seems really hot. Took a look underneath and noted this discoloration. After a 20 minute drive. Is this normal? IMG_2024.jpgIMG_2025.jpg


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  8. #8
    Hooked Lank's Avatar
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    Did you peel the layer of plastic off first or leave it on?

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  9. #9
    Old Timer fiend's Avatar
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    Quote Originally Posted by Lank View Post
    Did you peel the layer of plastic off first or leave it on?

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    Layer of plastic you say?

    I’ll have to check that out. 🤣


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  10. #10
    Addict BaddestCross's Avatar
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    Yes



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