# Why is only the back half of my y-pipe is discolored?

Posted by Random Lurker ('91 SE) on September 14, 2002 at 15:10:25:

I was under the hood today and noticed that the back half (near firewall) of my Warpspeed "Y" is discolored. It is now a rusty looking brown color. The front half is still the same dull silverish color it was when I got it.

Should I be concerned about this? Both of my exhaust manifolds have broken studs. Could this contribute?

I thought it could be a fuel issue but wouldn't that discolor both parts of the pipe? Also, the cat is new and was installed with the pipe about a month ago.

Any ideas or is this normal?

Replys:

- Maybe when it rains the water hits your firewall then drips down onto the pipe. I did my studs this weekend. Inside Dave (91 SE) 13:14:32 9/15/2002 (0)

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: I was under the hood today and noticed that the back half (near firewall) of my Warpspeed "Y" is discolored. It is now a rusty looking brown color. The front half is still the same dull silverish color it was when I got it. : Should I be concerned about this? Both of my exhaust manifolds have broken studs. Could this contribute? : I thought it could be a fuel issue but wouldn't that discolor both parts of the pipe? Also, the cat is new and was installed with the pipe about a month ago. : Any ideas or is this normal?