Cat Deletion?
03-25-2016, 10:14 AM
#1
Member
Thread Starter
Cat Deletion?
I've got a 2012 Lariat with the 5.0. Right now I have a Flowmaster 44 series and was thinking of deleting the cat. Has anyone else done this? If so, what has your experience been(power, sound, MPG, etc.)? Pro's and Con's? Thanks!
03-25-2016, 11:35 AM
#2
Senior Member
That's a federal crime ($2,500) and illegal in CA and you wont pass smog.
03-25-2016, 01:06 PM
#4
Mark
iTrader: (1)
still illegal in all 50 States and could prevent resale of your truck.. but, it's your truck ... go for it.. you will also have to deal with 02 sensors
Last edited by techrep; 03-25-2016 at 01:09 PM.
03-25-2016, 01:08 PM
#5
Cat deletion doesn't really do much. If anything, just replace it with a High Flow unit. But still... don't see it doing more than, say, getting a tuner...
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sigma pi (03-26-2016)
03-25-2016, 03:14 PM
#6
How's she goin' eh?
Guys on the ranger-forums were removing 1 or 2 of the numerous that came on the 4.0L without throwing a code.
Is it illegal to remove smog equipment? Absolutely. Can you do it without anyone noticing? If you don't throw a code or fail e-tests, maybe.
Is it illegal to remove smog equipment? Absolutely. Can you do it without anyone noticing? If you don't throw a code or fail e-tests, maybe.
03-25-2016, 03:20 PM
#7
Only illegal to remove it if it's not broken. How else would they get replaced?
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03-26-2016, 01:41 PM
#8
Senior Member
http://www.ford-trucks.com/forums/12...eco-boost.html
They actually lost 5HP going from catted to catless.
03-29-2016, 05:38 PM
#9
And this proves it
http://www.ford-trucks.com/forums/12...eco-boost.html
They actually lost 5HP going from catted to catless.
http://www.ford-trucks.com/forums/12...eco-boost.html
They actually lost 5HP going from catted to catless.
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sigma pi (03-29-2016)
03-29-2016, 07:04 PM
#10
Senior Member
All valid points. Modern cat technology has come a looong way and they can hardly even be called restrictive anymore. The only real "benefit" that you would see is more volume, which most people can get by modding the post-cat components.
They're referring to removing it permanently (straight pipe), without the intent of replacing with a new unit.
Interesting data, and notably on an ecoboost, which hypothetically should react better to open exhaust than an NA motor. We have also seen a good study by grassroots motorsports that tested stock vs high flow vs test pipe on a miata and the max hp gain on high flow and test pipe was 1-2 max.
They're referring to removing it permanently (straight pipe), without the intent of replacing with a new unit.
Interesting data, and notably on an ecoboost, which hypothetically should react better to open exhaust than an NA motor. We have also seen a good study by grassroots motorsports that tested stock vs high flow vs test pipe on a miata and the max hp gain on high flow and test pipe was 1-2 max.
fullrace saw a loss when then ran open header VS their cat back. I am sure you guys would see the same thing.