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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 09-10-2013, 12:49 AM   #1
Muaddib
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Perrin front pipe turning purple

I am concerned that the catted portion will fail prematurely due to the heat. Anyone else is having the same problem.
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Old 09-10-2013, 02:26 AM   #2
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It won't and no, you are the only one with this concern.
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Old 09-10-2013, 08:02 AM   #3
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i turned my catless font pipe purple in one drive. this is normal for stainless steal to do under heat.
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Old 09-10-2013, 08:42 AM   #4
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This is normal behavior. I've seen it on every stainless exhaust I've ever worked on.
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Old 09-10-2013, 11:46 AM   #5
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It's pretty!

I had HFC on my audi and it turned purple/pink. I looked at it every time I opened the hood.
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Old 09-10-2013, 03:29 PM   #6
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Quote:
Originally Posted by Muaddib View Post
I am concerned that the catted portion will fail prematurely due to the heat. Anyone else is having the same problem.
Muaddib, you're fine, that is normal behavior for front pipes. The cats are designed to take a lot of heat. We run the same cats on turbo Subarus that are running much more power then the BRZ, and they work great!
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