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removing which cats will you have gas odor?

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Old 10-08-2014, 10:29 AM
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15 S63, 18 Ram 2500 Cummins
removing which cats will you have gas odor?
Ever since I replaced my fuel system with new fuel pumps and sending unit, the last thing I want is to smell gas in the car. I want headers which I know deletes the primary cats and the X-pipe which delete's the secondary cats, but I don't want gas odor, which setup should I do then?
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Old 10-08-2014, 10:59 AM
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Race cats
Try the thunderbolt race cats
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Old 10-08-2014, 11:41 AM
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I've got MBH longtube headers which require the removal of the 1st set of cats...

Never noticed a fuel smell with only the 2nd set in place.


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Old 10-08-2014, 12:34 PM
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I have no cats and have no gas smell. If I have to start my car in my garage (for yet another failed suicide attempt, or just to go for a drive), I just push the recirc button until I get outside.
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Old 10-08-2014, 12:44 PM
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are you talking about gas smell or the foul odor when going WOT? I get that every now and then and as far as i know my car is stock...
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Old 10-08-2014, 01:12 PM
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Primary and secondary cat delete with no resonator and I get fumed when I run it hard, or sitting in stop and go traffic when it's 100*F+ outside. Regular/mild driving I have no fume issue.
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Old 10-08-2014, 01:56 PM
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Yes it stinks. Not what you want out of your Mercedes.
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Old 10-08-2014, 06:10 PM
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Originally Posted by Denroll
I have no cats and have no gas smell. If I have to start my car in my garage (for yet another failed suicide attempt, or just to go for a drive), I just push the recirc button until I get outside.




your nose is bad dude... I still got secondaries and it smells
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