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Thread: New QuietCrawler system for the 2012+ Jeep JK Unlimited

  1. #1
    Advertiser DynoMax Exhaust's Avatar
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    Cool New QuietCrawler system for the 2012+ Jeep JK Unlimited

    We are excited to launch our new QuietCrawler system for the 2012-2015 Jeep JK Unlimited. This system tucks your mufflers up and out of harms way when on the trail. Get that sound you want and have a nice sound at cruising speeds. As always backed by our 90 day Sound and Perfromance guarantee and our Limited Lifetime Warranty. More info in the link:

    http://www.dynomax.com/quietcrawler-...ler-39535.html

    Check with your favorite retailer on pricing!


    Last edited by DynoMax Exhaust; 01-08-2016 at 06:08 PM.

  2. #2
    Nothing but a Thing Angry Aussie's Avatar
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    Quote Originally Posted by DynoMax Exhaust View Post
    We are excited to launch our new QuietCrawler system for the 2012-2015 Jeep JK Unlimited. This system tucks your mufflers up and out of harms way when on the trail. Get that sound you want and have a nice sound at cruising speeds. As always backed by our 90 day Sound and Perfromance guarantee and our Limited Lifetime Warranty. More info in the link:
    http://www.dynomax.com/quietcrawler-...-cat-back-sys…

    Check with your favorite retailer on pricing!


    Awesome. I may be one of the first to try this system, the system I have on now is to loud at highway speeds.

  3. #3
    Old Timer JeepJeep75's Avatar
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    This is what I've been looking for. A quiet, tucked-up exhaust system. I will definitely be looking for feed-back on this system.

  4. #4
    Guy with a Red 2-Door cozdude's Avatar
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    Hey Matt, does the muffler mount up by the evap canister like the rock crawler system does? If so is the muffler Interchangeable for those that have the rock crawler and want this quieter muffler?
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  5. #5
    Advertiser DynoMax Exhaust's Avatar
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    So I was the prototype for this system for the last year, here is my feedback, and where I have been.
    First off, I am in Colorado so A LOT of mountain passes, hills. I drove to Moab teice, St George and all over CO, like Telluride, and the 4 Corners area.
    The only time I hear it is at full throttle or when WOT (wide open throttle) so I hear it on the passes a lot.
    Also I personally hate the shift pattern of the transmission so I hear it when it down shifts from 5th to say 2nd.
    But around town and at cruise I never really hear it. Top off or soft top on and tire road noise, way more than this.

    We also tested it on our 2012 with the Edelbrock super charger, from my limited time in that rig, it was nice too. The sales rep who drives it mainly loves this set up.

    It is probably 10-20% quieter than our normal "rock crawler" system and even more than the Evolution Competition system, since this system dumps early.

    Good luck too!
    Matt



    Quote Originally Posted by JeepJeep75 View Post
    This is what I've been looking for. A quiet, tucked-up exhaust system. I will definitely be looking for feed-back on this system.

  6. #6
    Knows a Thing or Two OJK12's Avatar
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    This sounds awesome! The link only mentions the 4 door, will this only fit a 4 door currently?

  7. #7
    Advertiser DynoMax Exhaust's Avatar
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    So not exactly.

    The first muffler (and hanger) are different. This is the new QuietCrawler system.
    See this image, you can see the Race Bullet is pretty close to the EVAP and is used because it is smaller than the Ultra Flo Welded used in the other system, a 4" vs 6" round.
    Also who can catch what is "wrong" with that first muffler? It's a typical muffler/exhaust install "mistake".



    Where the Ultra Flo Round is on the rock crawler system.
    And honestly it has been so long that I don't know how much space there is to play around in FRONT of this muffler. I would think a center/offset so that you can adjust it up a bit would work perfectly.

    Great question (as usual Coz!)







    Quote Originally Posted by cozdude View Post
    Hey Matt, does the muffler mount up by the evap canister like the rock crawler system does? If so is the muffler Interchangeable for those that have the rock crawler and want this quieter muffler?
    Attached Images Attached Images

  8. #8
    Advertiser DynoMax Exhaust's Avatar
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    Correct, under a 2 door there just isn't space to my knowledge, to make this package fit.

    Quote Originally Posted by OJK12 View Post
    This sounds awesome! The link only mentions the 4 door, will this only fit a 4 door currently?

  9. #9
    Guy with a Red 2-Door cozdude's Avatar
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    Quote Originally Posted by DynoMax Exhaust View Post
    So not exactly.

    The first muffler (and hanger) are different. This is the new QuietCrawler system.
    See this image, you can see the Race Bullet is pretty close to the EVAP and is used because it is smaller than the Ultra Flo Welded used in the other system, a 4" vs 6" round.
    Also who can catch what is "wrong" with that first muffler? It's a typical muffler/exhaust install "mistake".



    Where the Ultra Flo Round is on the rock crawler system.
    And honestly it has been so long that I don't know how much space there is to play around in FRONT of this muffler. I would think a center/offset so that you can adjust it up a bit would work perfectly.

    Great question (as usual Coz!)

    To answer your question it's the same mistake I made when installing mine lol left the clear plastic on

    Thanks for the response Matt! Yea it is not interchangeable at all t seems. If anything it looks like you can keep the main last pipe but you would still need the new intermediate pipe, muffler, and the bullet and even then it still may be either to long or to short.
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    October 16, 2013, wednesday early evening, east of the pacific ocean, selectee for truly random and boring Parking lot photo of the moment grand platinum prize winner!

    2011 JK
    EVO Bolt-on Coilovers, EVO 1/4 pounder w/ stinger, 37" Cooper STT Pros, PR44, and some EVO stuff

    Awaiting install-
    On Order-
    Want list- Evo carrier and skins, PSC hydro assis

    jlwrangler.com

  10. #10
    Advertiser DynoMax Exhaust's Avatar
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    Ha! You caught it, this is was the Sales Manager's JKU and he sent that from the shop that installed. I told him to remove that before driving off.
    And you are correct.

    Quote Originally Posted by cozdude View Post
    To answer your question it's the same mistake I made when installing mine lol left the clear plastic on

    Thanks for the response Matt! Yea it is not interchangeable at all t seems. If anything it looks like you can keep the main last pipe but you would still need the new intermediate pipe, muffler, and the bullet and even then it still may be either to long or to short.

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