New Exhaust

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IRambo90

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i just put a flowmaster 40 serires on my 00 XLT 5.4 and it sounds decent ..is there anyway i can make it louder?
 

toms89

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Remove cats... but not emissions legal!!
 
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IRambo90

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i was thinkin about it ...my Cats cap on the passenger side rattles is that normal in this Gen?
 

masterhacker

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I don't think Ive ever owned a vehicle that would pass emissions, usually the first thing i do is pull the cats off and scrap them. im looking forward to doing that on my expedition seeing that there is 4
 

FloorIt

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I replaced my cats(four) for two Magnaflow High flow Cats. Oxygen sensor were retained fore and aft of the cats so it still passes emmissions and does not give a check engine light/code.
 
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