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Old Oct 5, 2016 | 11:30 PM
  #1  
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TroyR
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Cat delete?

I have a 2003 F350 V10, I was wondering if deleting the cat will set off any check engine lights or reduce or increase performance?
 
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Old Oct 5, 2016 | 11:51 PM
  #2  
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twigsV10
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Unless you have a O2 sensor after the converter the answer to all of your questions is no vs functioning converter.
 
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Old Oct 6, 2016 | 05:49 AM
  #3  
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Im50fast
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Mine is a 2007. Mine has four sensors total.

I did cat delete and have persistent CEL. I've read about a few ways to disable the light. Some are intriguing and I just don't have time to try them.

You won't gain performance unless your cat(s) was bad (like mine).

I don't mind the CEL, and I'm not concerned with my contribution to Earths air pollution, but I DO have some regret about the new exhaust odor. It's embarrassing. When/if I stand within 10' of the tailpipe (with engine idling) with a customer it is embarrassing. It'll wilt flowers and make your eyes water, figuratively speaking.
 
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Old Oct 6, 2016 | 08:04 AM
  #4  
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finn
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You won't gain performance and your truck will smell bad.

The converter case on my plow truck rusted out so I replaced it with a straight pipe, and now that smell drives me out of the cab.

Time to bite the bullet and by an aftermarket replacement cat so I don't get nauseous every time I plow snow.
 
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Old Oct 6, 2016 | 11:11 AM
  #5  
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Besides what's already been said, some reported the "v10 sound" wasn't better and in fact, worse, with the cat removed.

YMMV
 
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Old Oct 6, 2016 | 10:17 PM
  #6  
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twigsV10
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Originally Posted by Krewat
Besides what's already been said, some reported the "v10 sound" wasn't better and in fact, worse, with the cat removed.

YMMV
I can vouch for that, gutting the cat doesn't do anything good for the exhaust sound on a 2000 2V V10 with one cat and stock exhaust.
 
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Old Oct 7, 2016 | 01:37 AM
  #7  
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CharlyG
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The tip I put on mine lowered the note at least a semi-tone...and the 3 foot res does the rest. altho I do have an Alfa Romeo recording on my iPhone.... I just need an outside speaker! 950 watts should do fine.
 
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Old Oct 7, 2016 | 11:46 PM
  #8  
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Thanks everyone sounds like I shouldn't cut it out doesn't seem like I gain anything but a bad smell and I heard maybe some MPG?
 
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Old Oct 8, 2016 | 09:32 AM
  #9  
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Leave the CAT and have fun pickin out a glass pack, or Aeroturbine/Jones, or ....whatever floats yer boat, and a shiny tip.
 
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