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Old 02-18-2011, 11:43 AM
90fordranger 90fordranger is offline
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Default Would there be a problem if i took off my cat, and just had my flowmaster?

I kinda want to take my cat off, and just have my flowmaster on there. I'm wondering if it would cause any problems? I have heard it may mess with my o2 sensors, or my check engine light will come on.
Will it effect gas millage or power?

So just wondering if it will mess with anything.

thanks a lot.
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Last edited by 90fordranger; 03-10-2011 at 12:42 PM.
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  #2  
Old 02-18-2011, 11:58 AM
Outcast Outcast is offline
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Default

It shouldn't cause issue but it would smell somewhat like raw fuel. I suggest you search the forum, its been discussed multiple times.
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Old 02-18-2011, 12:58 PM
TerrenceStuart TerrenceStuart is offline
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Default Re: Would there be a problem if i took off my cat, and just had my flowmaster?

go ahead! be adventurous!
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Old 02-18-2011, 07:56 PM
S13minus1 S13minus1 is offline
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Default Re: Would there be a problem if i took off my cat, and just had my flowmaster?

no your car obdI. obdI is a basic computer, and wont see the cat not being there. you'll be fine
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Old 03-20-2011, 09:25 PM
spoons896 spoons896 is offline
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Default Re: Would there be a problem if i took off my cat, and just had my flowmaster?

Just take the cat off and bust out the inside with some rebar, just so it looks like you have one in case you get that one dick LEO that decides to check for one when he pulls you over for a noise violation. I know in Missouri its an 80dollar ticket for not having, found this out the hard way on a civic with a fart can when i was young and stupid...er. same effect but at least it looks legal.
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Old 03-22-2011, 10:22 PM
Gumcrew2 Gumcrew2 is offline
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Default Re: Would there be a problem if i took off my cat, and just had my flowmaster?

Without getting into backpressure needs and loss of power in the usable power band I'll say go for it. it aint my truck.


That being said: mine runs WAYYYY better with a hi-flow cat and a Thrust than it ever did with an empty cat with/without muffler
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Old 03-23-2011, 02:29 PM
caliranger10 caliranger10 is offline
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Default Re: Would there be a problem if i took off my cat, and just had my flowmaster?

wouldn u be screwed when you went to get the car smogged? i know in cali we have stupid strict smog laws....
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Old 03-23-2011, 03:13 PM
SalRanger2 SalRanger2 is offline
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Default Re: Would there be a problem if i took off my cat, and just had my flowmaster?

just put in a high flow cat, im sure you'd be much happier but its your call. personally, i wouldnt run it without it.
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  #9  
Old 03-23-2011, 03:16 PM
matt224 matt224 is offline
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Default Re: Would there be a problem if i took off my cat, and just had my flowmaster?

it will make your car sound god awful. Cats cut out the rasp and drone very well, the only cars that sound good catless are muscle cars. A V6 will sound terrible. Get a high flow cat to replace it.
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