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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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  #1  
Old 11-22-2009, 09:07 AM
tkeduck tkeduck is offline
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catalytic converter/cherry bomb

I have a 1990 F150, 5.8L, 351W, two wheel drive, extended cab, long bed. Does anybody know if the catalytic converter is filled with the ceramic beads or the honeycomb?
I put a cherry bomb on it (single exhaust) and it is not loud at all. In fact I ran it with just the CAT and it seemed to muffle the sound better than my muffler did. The cherry bomb I have is 22" and is straight through pipe, I assumed it could be mounted in either direction as there was no airflow arrow. If I left the CAT alone will that cherry bomb ever burn out or get louder? Is there a trick to burning it out faster?
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Old 11-22-2009, 09:30 AM
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just driving it for about 1000 miles or so should blow the packing out. As for installing it backwards, it's impossible on those.
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Old 11-22-2009, 11:43 AM
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You could just leave it alone and not be obnoxious. I'm still trying to save up the money to fix the exhaust that the PO ****ered up.
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Old 11-22-2009, 02:03 PM
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And your Hayabusa is as quiet as a buick? Give me a break. I guess I should have specified I am not looking to wake the dead. That is why I left the CAT in place and it is only a single exhaust. This is a farm truck used for pulling. I just want to be able to hear the engine working under pressure.
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Old 11-22-2009, 02:12 PM
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Originally Posted by tkeduck View Post
And your Hayabusa is as quiet as a buick? Give me a break. I guess I should have specified I am not looking to wake the dead. That is why I left the CAT in place and it is only a single exhaust. This is a farm truck used for pulling. I just want to be able to hear the engine working under pressure.
Fair enough! And actually, my Hayabusa is pretty quiet. When I was shopping for a performance exhaust, I purchased a model from Yoshimura that was fairly quiet and then got them to add an additional silencer to it. I don't need the extra attention from the po po and I also hate listening to noisy exhausts.
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Old 11-22-2009, 04:45 PM
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I don't know how loud you want,but your truck has 2 converters and even with a cherry bomb it's not gonna be that aggressive sounding or loud.Your best bet is to take the cherry bomb off or get rid of the converters and put on a high flow one or just get rid of them all together.But like I said it all depends on how loud you like your exhaust.
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Old 11-22-2009, 08:04 PM
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I would run a high flow convertor or just the front convertor and the cherry bomb.
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Old 11-22-2009, 10:06 PM
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I know beggers can't be choosers but if I cut the second converter out is there a O2 sensor in it and if so can it be bypassed or re-mounted so as an error code does not pop up?
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Old 11-22-2009, 10:16 PM
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the o2 sensor is upstream of the converters,so you will be fine.
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Old 11-22-2009, 10:16 PM
 
 
 
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