Downpipe wrap

MiWiAu said:
Rockstar04 said:
From the research I've personally done, I would NOT wrap cats. Especially on the ecoboost. When I was tuning my explorer, I was constantly going into "cat over-temp protection" even with pretty conservative fueling and boost.  Cats need to be hot to work, but excessive heat will destroy them, and one of the few ways for them to cool off it through their body.

Thanks for the feedback. Out of curiosity, were you going into cat over temp on the OE downpipes/cats, or did you have aftermarket?

COT is just a calculation the computer does to estimate the temperature of the cats based on how the engine is running (there is no real sensor), but to answer your question I'm on all factory parts.


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