SHELBY GT 350 Member
Joined: Sep 2010
Location: see user name
Oh, well maybe so. Now that I stop to think about it, I've heard that the cat's don't begin to actually work until they heat up to at least 400° and a normal average operating temp is around 600°. 1000° seems a bit warm but hey I'm no expert, and I'm sure that some are designed different than others and work at different temps.
2001 GT Convertible
All the usual bolt-on's /200 I6, C4
And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4