After starting my engine this month during winter storage, I noticed the trubo manifold and the begining of my downpipe GLOWING deep red after a 20 minute idle. The engine hadn't been started in a bit so it idled around 2000-1500k for about 5-7mins before calming down to around 1000k. I live in Michigan, and start my car about once a month during the winter to keep everything moving as much as I can during the winter. I've never noticed this glowing before.

Any idea as to what is wrong? Car is mostly stock, only mod is downpipe.

Thanks,
Mikeyp_FD

 

may be a clogged cat.

 

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