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Old 07-16-2021, 10:24 PM   #1
3k1n
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Exhaust leak help

I have a 2017 brz that came with aftermarket front pipe and catback. Unfortunately though, the front pipe section that bolts to the catback has a standard flat flange while the catback section that bolts to the front pipe has a donut flange.
As you can already guess I've been dealing with a small exhaust leak. I've tried using a donut gasket paired with a standard flat gasket but still getting a small leak.

My question is, has anyone run into this issue and have a solution that does not involve cutting and re-welding a matching flange?
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Old 07-17-2021, 01:41 AM   #2
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Old 07-17-2021, 02:48 AM   #3
YSoAggressive
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Originally Posted by jflogerzi View Post
I always see this but how do you apply this stuff?
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Old 07-17-2021, 02:57 AM   #4
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Originally Posted by 3k1n View Post
I have a 2017 brz that came with aftermarket front pipe and catback. Unfortunately though, the front pipe section that bolts to the catback has a standard flat flange while the catback section that bolts to the front pipe has a donut flange.
As you can already guess I've been dealing with a small exhaust leak. I've tried using a donut gasket paired with a standard flat gasket but still getting a small leak.

My question is, has anyone run into this issue and have a solution that does not involve cutting and re-welding a matching flange?
Bubba suggests -

(I see ol @jflogerzi got ya covered)
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Old 07-17-2021, 03:01 AM   #5
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Originally Posted by YSoAggressive View Post
I always see this but how do you apply this stuff?
With your finger or a popsicle stick -
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