Stock GT Exhaust on V6 Mustang

Discussion in 'V6 3.7L Engine / Mods: Bolt-ons, Exhaust, Tuning' started by soldier989, Apr 26, 2016.

  1. cyclonetron

    cyclonetron Well-Known Member

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    I believe so yes, but you'll need to cut out space for the quad tips to fit.
     
  2. teepee542

    teepee542 Member

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    will the Roush rear valance work on the v6? I believe it is setup for quad tips. I could possibly get the valance and the cat back exhaust for less than $300.
     
  3. cyclonetron

    cyclonetron Well-Known Member

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    Sadly it looks like it won't fit the v6. https://www.americanmuscle.com/roush-rear-valance-noholes-1516.html

    If you look at the questions someone from AM answered saying it wasn't possible.
     
  4. teepee542

    teepee542 Member

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    glad i asked. thanks!
     
  5. cyclonetron

    cyclonetron Well-Known Member

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    Does anyone know how good this setup isn’t with shorty headers? Looking to get a bit more engine note without any drone.
     
  6. fordguys550

    fordguys550 yep..."just" a V6

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    The rouch valence only works with premium bumpers
     
  7. fordguys550

    fordguys550 yep..."just" a V6

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    Pretty sure theres a video at the beginning of this thread
     
  8. rvlyssup

    rvlyssup Vag...Gun...Stang-NUT

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  9. fordguys550

    fordguys550 yep..."just" a V6

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    Well...not without some serious rework anyways lol. You could just cut the stock bumper to fit quads like i did. Pretty easy
     
  10. MidwayJ

    MidwayJ Well-Known Member

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    I found a stock GT exhaust for $100 about 50 miles from me. I don't have a means to transport it, so the seller is delivering it to a muffler shop where I will get it installed. I am having a little remorse since there is a lot I like about the Pypes Street Pro Touring axle back I have right now. I hope the GT exhaust isn't too quiet. :)
     
  11. cyclonetron

    cyclonetron Well-Known Member

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    The Stock GT exhaust is pretty quiet. I actually liked the the stock v6 a bit better, but now that I've put in the GT Roush Axle Backs it really is a nice tone. Deep during normal driving, and a nice growl when you get on it without being raspy.
     
  12. MidwayJ

    MidwayJ Well-Known Member

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    This is the first post I've seen where someone actually liked the stock V6 exhaust better than the stock GT. What about it did you prefer?

    I do expect the GT exhaust to be quieter than my current axle back, but I figure there will be more options for trying other things once I've switched to the GT. The Roush axle-back for the V6 is reportedly fairly raspy. Interesting to hear pairing the GT version with the GT resonator might be different.
     
  13. cyclonetron

    cyclonetron Well-Known Member

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    Hmm.. hard to say. I suppose it just paired a little better with the v6 in my opinion in stock form. Kinda raspy and mean when you get on it but totally quiet when you are just cruising, where as the GT catback has a deeper tone, and also introduced some drone at highway speeds.

    Here's a video of my setup with a cold start and some revs.

     
  14. MidwayJ

    MidwayJ Well-Known Member

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    Sounds good. Also the first report I've seen of getting drone from just a GT catback. I hope the drone didn't get louder when you added the Roush AB.
     
  15. cyclonetron

    cyclonetron Well-Known Member

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    It did, but it changed the tone to be less deep. Its hard to describe but the stock GT drone has less character, where as the introduction of the axle-backs creates a bit more of aggression out of it. If I wanted to be stock and have absolutely no drone I would just stick with the stock v6 catback.
     
  16. Stormtrooper5.0

    Stormtrooper5.0 Well-Known Member

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    When i had my 2015 v6, i put on flowmaster outlaws which were loud but too raspy and high pitch at higher rpms, also really droney...I eventually went to a stock GT exhaust and it was definitely better for me. It had a deeper tone throughout the whole powerband, there was no drone at all, it felt like it gave a bit of an acceleration increase, and it just sounded nice overall. The stock v6 exhaust isnt bad but it does have a tiny bit of rasp. Imo the GT exhaust should have came stock with the v6, just a more smoother and more deeper sound. I have a GT now and if i were to go back to a s550 v6 I would throw on a stock GT exhaust no question.
     
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  17. MidwayJ

    MidwayJ Well-Known Member

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    Thanks. It seems a lot of people share your opinion. The Pypes axle back I currently have sounds great at WOT without being too raspy, has a nice rumble inside the car at low RPM (especially when cold), and it's not overly loud. The only negative is some drone but it's very tolerable. I am pretty happy with it, but based on favorable reviews and finding one cheap I thought I'd give the GT catback a shot. :)
     
  18. MidwayJ

    MidwayJ Well-Known Member

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    The GT catback went on today. I am very pleased with the condition. It was taken off a 2017 GT at 500 miles and sat in the guy's garage for a year.

    Definitely a deeper tone at idle than the stock V6 exhaust. At higher RPMs it seems pretty much the same, at least from inside the car. I am happy to be drone free but I'm going to miss the other setup when winding it up.
     
  19. Stormtrooper5.0

    Stormtrooper5.0 Well-Known Member

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    Nice...yea its definitely quieter but it does give it a nice low deep rumble which to me was perfect since i got annoyed by drone and the high rpm rasp.
    I remember last year when i was debating on if i should put the GT exhaust, someone on the forum or youtube said something that kind of just made me pull the trigger. He said that it had a more mature luxurious sound and its was should have came stock with the V6s. Once I put it on, I couldnt agree more.
     
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  20. MidwayJ

    MidwayJ Well-Known Member

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    Maybe I just got used to the louder aftermarket exhaust, but from inside the car the stock GT exhaust actually seems quieter than the stock V6 was. Not at idle (GT is deeper and a little louder there), but when revving the engine. In paddle shift mode I tend to shift a lot later now because I barely hear the engine winding to higher RPMs. In my normal everyday commute I am actually liking it. The car seems very refined and moderate acceleration seems effortless. Flooring it is less fun, though. :)
     
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