What do aftermarket "x-pipes" do?
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2009-2014 Cadillac CTS-V Performance Mods Discussion, What do aftermarket "x-pipes" do? in Cadillac CTS-V Series Forum - 2009-2014; This might be a silly(or even stupid) question. I just started tune-up my CTS-v and it's already too hard! I ...
  1. #1
    uptownvinc's Avatar
    uptownvinc is offline Cadillac Owners Member
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    This might be a silly(or even stupid) question.
    I just started tune-up my CTS-v and it's already too hard!

    I know many companies such a Magnaflow & Borla sell their own x-pipes that we can replace with stock ones.
    What exactly happens if i replace my stock x-pipes with them?

    Does the sound change?
    Any drones? I CANT STAND DRONES.
    How does it affect the HP & torque?
    How does it affect the airflow & pressure?

    Help me out here guys

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  3. #2
    Moparman4444 is offline Cadillac Owners Enthusiast
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    Re: What do aftermarket "x-pipes" do?

    Since the stock X pipe is 2 1/2", why not just leave it and save the money. It looks different than some after market ones but that's the only difference. Build around it, I did.

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    uptownvinc's Avatar
    uptownvinc is offline Cadillac Owners Member
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    Quote Originally Posted by Moparman4444
    Since the stock X pipe is 2 1/2", why not just leave it and save the money. It looks different than some after market ones but that's the only difference. Build around it, I did.
    Really? Not even a change in sound?
    Then why would they sell these products?

    And when we say 2.5" are we talking about the diameter?

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    Moparman4444 is offline Cadillac Owners Enthusiast
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    Re: What do aftermarket "x-pipes" do?

    I'm no expert but the pipe diameter is 2 1/2" going into and out of the factory X pipe so if you are replacing the pipes with the same size, then why not keep the factory piece. You could replace it for an after market one costing less than $100, but again, why go through the trouble. An after market X pipe should not effect the sound at all. the mufflers and removal of CATS certainly will.

  6. #5
    lsxtuner is offline Cadillac Owners Member
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    Re: What do aftermarket "x-pipes" do?

    larger pipe diameter = more drone

    stay with 2.5" and replace the crimped pipes if you want

  7. #6
    uptownvinc's Avatar
    uptownvinc is offline Cadillac Owners Member
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    Quote Originally Posted by lsxtuner
    larger pipe diameter = more drone

    stay with 2.5" and replace the crimped pipes if you want
    Thanx!

    Whats the crimped pipes BTW?

    ----------

    So i still don't understand, if it's the same diameter, and doesn't affect the sound at all as people mentioned, why would they sell those products? More back pressure or less?

  8. #7
    Luna. is offline Cadillac Owners Connoisseur
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    Re: What do aftermarket "x-pipes" do?

    Magnaflow and Borla have been known for their drone, but I'd say it's more the mufflers than an x-pipe issue. I utterly loathe drone as well and the only system that I've owned/heard that doesn't drone in the slightest is Corsa, but that is a different issue. The biggest question for me is why do you want to change it at all? Are you worried about the crimp or something in terms of performance?

  9. #8
    uptownvinc's Avatar
    uptownvinc is offline Cadillac Owners Member
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    Quote Originally Posted by Luna.
    Magnaflow and Borla have been known for their drone, but I'd say it's more the mufflers than an x-pipe issue. I utterly loathe drone as well and the only system that I've owned/heard that doesn't drone in the slightest is Corsa, but that is a different issue. The biggest question for me is why do you want to change it at all? Are you worried about the crimp or something in terms of performance?
    Currently, i removed the stock x pipe and connnected with straight pipes. I love the sound but the low-end torque sucks due to no back pressure. I was wondering i the aftermarket x-pipes could create back pressure and also give me the V8 sound at the same time.

  10. #9
    Moparman4444 is offline Cadillac Owners Enthusiast
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    Re: What do aftermarket "x-pipes" do?

    The X pipe helps the system scavenge the exhaust and balances out the exhaust tone so you get consistent exhaust pulses out the back and not an alternating exhaust pulse sound. I would definitely keep the X pipe because they have been proven to be a benefit.

  11. #10
    Darnell is offline Cadillac Owners Fanatic
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    Re: What do aftermarket "x-pipes" do?

    The stock X-Pipe is too far back to really do what it's supposed to do. Some people have reused it and positioned it closer to the front as part of a custom mid-pipe setup.

  12. #11
    uptownvinc's Avatar
    uptownvinc is offline Cadillac Owners Member
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    Quote Originally Posted by Moparman4444
    The X pipe helps the system scavenge the exhaust and balances out the exhaust tone so you get consistent exhaust pulses out the back and not an alternating exhaust pulse sound. I would definitely keep the X pipe because they have been proven to be a benefit.
    Thanks but that's sad cuz what i exactly want it a alternated sound

  13. #12
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    Re: What do aftermarket "x-pipes" do?

    There is one pipe that is almost flattened out. I haven't looked at it too closely, but I can certainly see replacing that for performance.

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