exhaust question
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Cadillac STS-V Series Forum Discussion, exhaust question in Cadillac V-Series Forums; i have read a few threads on here about the magnaflow exhaust for the sts-v i'm wanting to know i ...
  1. #1
    theotherguyssn's Avatar
    theotherguyssn is offline Cadillac Owners Fanatic
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    exhaust question

    i have read a few threads on here about the magnaflow exhaust for the sts-v i'm wanting to know i had saw one guy had bought the mufflers tips and x-pipe im assuming just would have to take all to a muffler shop and have it all welded in? i'm not imagining that the mufflers will be able to be just slid over existing pipes after mufflers were cut off? any help would be appreciated

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  3. #2
    PGA2B's Avatar
    PGA2B is offline Cadillac Owners Connoisseur
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    Re: exhaust question

    Yes, the Magnaflow set up in custom and needs to be welded in. I would suggest you do the mufflers only first and then if you want more do the X-pipe for extreme or the resonated X-pipe for mild.

  4. #3
    theotherguyssn's Avatar
    theotherguyssn is offline Cadillac Owners Fanatic
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    Re: exhaust question

    awesome ok thanks a ton!!

  5. #4
    CShiv's Avatar
    CShiv is offline Cadillac Owners Member
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    I just did this set up and it's not as loud as I thought it would be.

  6. #5
    boomys10 is offline Cadillac Owners Enthusiast
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    Re: exhaust question

    i just cut all of mine off and out. the only thing left is the resonantor. lol.. lots of vids on youtube, lookup itisisayshe and youll see a bunch of me doing stuff and you can hear it.

  7. #6
    PGA2B's Avatar
    PGA2B is offline Cadillac Owners Connoisseur
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    Re: exhaust question

    Quote Originally Posted by CShiv View Post
    I just did this set up and it's not as loud as I thought it would be.
    Did you change the factory resonator? If not put in the Magnaflow 10791 X-Pipe.

  8. #7
    CShiv's Avatar
    CShiv is offline Cadillac Owners Member
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    Yep I changed to the X pipe also. It's louder than stock and a better note too. I was just expecting more from some of the words used to describe the set up.

  9. #8
    theotherguyssn's Avatar
    theotherguyssn is offline Cadillac Owners Fanatic
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    Re: exhaust question

    any notice in horsepower gains just from putting new mufflers and new xpipe under the car yall guys know of?? as quiet as the car is i would imagine its got to be a little restrictive

  10. #9
    CShiv's Avatar
    CShiv is offline Cadillac Owners Member
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    Can't say that I noticed any difference as far as performance

  11. #10
    1madstsv's Avatar
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    Re: exhaust question

    Nope you might get 5rwhp at stock hp levels. Even gutting the cats was only good for 10-12 Rwhp

  12. #11
    2007blackbty is offline Cadillac Owners Member
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    Re: exhaust question

    I have magnaflow mufflers.how much louder louder will it be with magnaflow x pipe resonater 12468?

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