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  1. #1
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    ViperGeorge's Avatar
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    ACR vs non ACR exhaust

    I have a 2014 GTS and a 2017 GTC ACR-E/TA. Both are stock. Why does my ACR's exhaust seem noticeably louder to me? I know the outlets on the sides are different shapes (oval vs. round) but is there anything else different? Do they use the same mufflers? Since my ACR is a GTC I believe it has all of the sound deadening and insulation as a non-ACR Viper.
    2017 ACR/TA in 2014 TA Header Orange, #4 of 10.
    2008 Vert in Viper Bright Blue with silver stripes.
    2014 GTS in white with gunmetal stripes. I'm also one of the original 100's

  2. #2
    I believe the cats on the acr are different then non acr

  3. #3
    my understanding is they are exactly the same sans the tips and surrounds.

  4. #4
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    thought all gen 5 cars had oval outlets on exhaust

  5. #5
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    Quote Originally Posted by SRT_BluByU View Post
    my understanding is they are exactly the same sans the tips and surrounds.
    I concur
    Ryan - 14 Stryker Green Nth Moto Heads/Cam
    Past - 14 Stryker Green VE Stage II Heads/Cam, '16 ACR-E, '14 Anodized Carbon, '14 TA, Orange '03 Paxton vert w/coupe rear, Black '06 coupe w/SSG accents

  6. #6
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    Quote Originally Posted by bluesrt View Post
    thought all gen 5 cars had oval outlets on exhaust
    ACR's are round, at least mine are.
    2017 ACR/TA in 2014 TA Header Orange, #4 of 10.
    2008 Vert in Viper Bright Blue with silver stripes.
    2014 GTS in white with gunmetal stripes. I'm also one of the original 100's

  7. #7
    Supporting Vendor JonB ~ PartsRack's Avatar
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    Quote Originally Posted by SRT_BluByU View Post
    my understanding is they are exactly the same sans the tips and surrounds.

    What He Said.


    Note, mods including PCM/ECU will make it sound different
    Jon "JonB" Brobst ~~~~:<~ JonB@PartsRack.com


  8. #8
    Enthusiast Rare Snake's Avatar
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    OP, it is funny that you mention this. My buddy's ACR is stock too, and it just seems louder than my GTS. Maybe it's just the paint job.
    First it was a '95 RT/10, then came the '01 GTS. Now it's a '14 GTS. They say the third time's the charm, I have to agree.

  9. #9
    Enthusiast cashcorn's Avatar
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    exhaust tips

  10. #10
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    Quote Originally Posted by Rare Snake View Post
    OP, it is funny that you mention this. My buddy's ACR is stock too, and it just seems louder than my GTS. Maybe it's just the paint job.
    Yea, it is weird. Both cars are stock but the ACR sounds louder.
    2017 ACR/TA in 2014 TA Header Orange, #4 of 10.
    2008 Vert in Viper Bright Blue with silver stripes.
    2014 GTS in white with gunmetal stripes. I'm also one of the original 100's

  11. #11
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    Voice of Reason's Avatar
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    My bet is there is a difference in sound deading material. The tips being slightly different seems hard to believe that it would cause a noticeable sound difference. But FCA was constantly tweaking the sound insulation and seat cushion padding so I bet the answer is foam/carpet related.

  12. #12
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    I have searched for exhaust parts numbers for both ACR and non-ACR cause I need a stock exhaust for my ACR. The parts numbers were same if I remember correctly.
    The only difference is the shape of tip, as mentioned above.

  13. #13
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    Tips make a much bigger difference than you may think.... Also, miles on the car and how it's driven. Fiberglass and muffler sound deadening material deteriorates as it ages, or if one is driven harder and hotter it can accelerate this.
    2014 SRT - Full APR Aero - BC Racing Coil Overs - Forgeline GA3R-6 - and the list goes on...
    Gen3 White "Mamba" #184 of 200
    @acr_ish on IG

  14. #14
    Supporting Vendor JonB ~ PartsRack's Avatar
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    We have some mellow sounding, +50HP sidepipe tips
    to fit G1, 3, 4, 5. Carbon Fiber of course.
    Color trim rings avail. {Dyno results pending}

    $995/pair. With a $895 rebate if not delighted

    Group Buy? If we can get 400 pre-paid orders we can offer free shipping.



    Can you tell Im snowed in? So Im snowing back......
    Jon "JonB" Brobst ~~~~:<~ JonB@PartsRack.com


  15. #15
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    GTS have extra sound deadening material in the car

    https://www.roadandtrack.com/new-car...per-april2013/
    2013 RaceYellow/Black GTS Laguna
    2015 Mustang GT Premium Perf Pack

  16. #16
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    Quote Originally Posted by ForTehNguyen View Post
    GTS have extra sound deadening material in the car

    https://www.roadandtrack.com/new-car...per-april2013/
    Prudes...
    2014 SRT - Full APR Aero - BC Racing Coil Overs - Forgeline GA3R-6 - and the list goes on...
    Gen3 White "Mamba" #184 of 200
    @acr_ish on IG

  17. #17
    Tech Team
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    The ACR may sound louder as it comes with less soundproofing. ACR exhaust is the same as standard Gen 5 except for the oval tips.
    specialtyperformanceteam.com
    310-597-6295

  18. #18
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    Quote Originally Posted by JonB ~ PartsRack View Post
    We have some mellow sounding, +50HP sidepipe tips
    to fit G1, 3, 4, 5. Carbon Fiber of course.
    Color trim rings avail. {Dyno results pending}

    $995/pair. With a $895 rebate if not delighted

    Group Buy? If we can get 400 pre-paid orders we can offer free shipping.



    Can you tell Im snowed in? So Im snowing back......
    Do they come with the hydraulic muffler bearings?
    2017 ACR/TA in 2014 TA Header Orange, #4 of 10.
    2008 Vert in Viper Bright Blue with silver stripes.
    2014 GTS in white with gunmetal stripes. I'm also one of the original 100's


 

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