Two cats?
Senior User
Joined: May 2007
Posts: 101
Likes: 0
From: Auburn, California
yea, i have a 96 f-150 andits got the same thing. i guess back in the day ford had a hard time getting their engined to pass smog so they just slapped an extra cat converter on. it cuts power makes it quiet, loose/loose situation there. but i live in California where enviromental standards are pretty high. so i dont know about wherever your from. damn california.
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Postmaster
Joined: Mar 2005
Posts: 2,949
Likes: 6
From: Earth
I'm in Dallas, and my Bronco just missed passing emissions testing on the hydrocarbons(175 ppm vs. 155 ppm allowable). I've ordered two new Catco converters to replace the stock ones. I've read where some folks passed with one newer cat replacing the two older ones, but I don't feel like going back to the muffler shop multiple times to piecemeal thing together...
