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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-01-2014, 10:30 PM | #1 |
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Borla UEL Header noise?
Hi Guys,
Today I installed the Borla UEL headers. Install was straight forward without any major issues. After installing, I am hearing this noise in the passenger cabin when I press the gas pedal at low rpm. Is this an exhaust leak where the header meets overpipe? It's the faint thin noise that's behind the rumble noise. Any advice would be welcome, Thank you. [ame="https://www.youtube.com/watch?v=BzweGYpU3Eo"]https://www.youtube.com/watch?v=BzweGYpU3Eo[/ame] |
04-01-2014, 11:30 PM | #2 |
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I would say that's rasp from the front pipe. Mine was terrible after the Borla install until I wrapped the front pipe.
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04-01-2014, 11:33 PM | #3 |
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04-02-2014, 12:32 AM | #4 |
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Wrap then thin sheets of aluminum wrapped around from Lowes held on with hose clamps. It's the only way to get the rasp down
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Last edited by 6speed_Sam; 04-02-2014 at 01:28 AM. |
04-02-2014, 01:03 AM | #6 |
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I got my rasp to completely go away
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04-02-2014, 01:05 AM | #7 |
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04-02-2014, 01:25 AM | #8 | |
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Quote:
Please excuse the simple drawing..hope it gets the point across. I wrapped everything I could.
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Last edited by 6speed_Sam; 04-02-2014 at 01:26 AM. Reason: poop |
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04-02-2014, 01:39 AM | #9 | |
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Quote:
even the cat? |
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04-02-2014, 07:55 AM | #10 |
Just drive it
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oh by the way, the setup is very simple.
Borla UEL Invidia Q300 Catback Stock overpipe, front pipe. |
04-02-2014, 09:02 AM | #11 |
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That's the exact noise that's been driving me insane! So heat wrap will do the trick??
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04-02-2014, 01:21 PM | #12 |
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I wrapped the whole front pipe but I do not have a cat. it's sheet aluminum not aluminum foil
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04-02-2014, 01:26 PM | #13 |
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Do you hear a ticking noise when on the throttle? If so, it is most likely a leak.
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04-02-2014, 01:39 PM | #14 |
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Dont forget that you changed the header to a much thinner stainless steal piping replacing the stock thick flanged cast manifold. You are going to hear more noise coming from the header itself.
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