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New cat to help gas milage?

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Old 04-21-2011, 11:05 AM
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Default New cat to help gas milage?

Let me reword my last thread that got locked...my cat clogged up on me a few months ago, and having school the next day and no money, i was in a pinch and just had to straight pipe it...however this increased my fuel economy...will putting a new, aftermarket cat on increase my mpg's?
Old 04-21-2011, 11:13 AM
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As said in your last thread...if it was clogged..now it has more flow therefore will give you better gas milage. Putting a new cat on there after removing the clogged one would have also increased your mpg also.
Old 04-21-2011, 11:15 AM
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Originally Posted by Screwd up 6
As said in your last thread...if it was clogged..now it has more flow therefore will give you better gas milage. Putting a new cat on there after removing the clogged one would have also increased your mpg also.
thank you...but will putting a new one on now increase it?
Old 04-21-2011, 11:15 AM
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Look at mudfrog, a vendor on the site. He sells a VERY good high flow cat that is legal.
Old 04-21-2011, 11:15 AM
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Yes it will help.

Under the rules of your last thread closure, speeding, underage drinking, selling a used cat to another member, etc etc should all be against the rules.
Old 04-21-2011, 02:00 PM
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Originally Posted by 1991Jeep_Man
Look at mudfrog, a vendor on the site. He sells a VERY good high flow cat that is legal.
thanks, i will definitely do that
Old 04-21-2011, 02:02 PM
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Originally Posted by Hoooper
Yes it will help.

Under the rules of your last thread closure, speeding, underage drinking, selling a used cat to another member, etc etc should all be against the rules.
Oh i understand that, i just didnt get the whole taking the cat off was "illegal" until i did go back and read the rules, i reckon that's just something to be left alone
Old 04-21-2011, 02:40 PM
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check out our vendor mudfrog. I just ordered a cat from him. they start at $36 and the "highflow" is $59
Old 04-21-2011, 03:17 PM
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i would replace your 02 sensors as well mabye just thro sum 15ohm resistors in there but putting a new cat on there will deffintly help with your air fuel ratio as well cuz of the 02 sensors
Old 04-21-2011, 03:26 PM
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x2 on new O2 sensors
Old 04-21-2011, 11:19 PM
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Originally Posted by lolz_jeep
i would replace your 02 sensors as well mabye just thro sum 15ohm resistors in there but putting a new cat on there will deffintly help with your air fuel ratio as well cuz of the 02 sensors
alright sounds good to me...i'll probably be doing all this after i get my new front bumper back from my friend who's doing a little modding to it...but after that gets back, bedlined, and mounted, i'll get some o2 sensors and a high flow cat from mudfrog

Originally Posted by Screwd up 6
check out our vendor mudfrog. I just ordered a cat from him. they start at $36 and the "highflow" is $59
well i found him, but is his site listed or should i just pm him on some details?
Old 04-22-2011, 03:41 PM
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did you like the way your straight pipe sounded?
Old 04-23-2011, 08:54 AM
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Originally Posted by Brandana
did you like the way your straight pipe sounded?
hellllll yes, with and without muffler...if you've seen videos on youtube, they do it absolutely no justice...im of course running it with a muffler right now, pending buying a highflow cat from mudfrog most likely
Old 04-25-2011, 10:57 AM
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Originally Posted by thelittlebrutethatcould

well i found him, but is his site listed or should i just pm him on some details?
it is on his profile. performance-curve.com
Old 04-25-2011, 07:01 PM
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had the same problem, replaced mine with a stainless steel magnaflow. sounds so much better and the mpgs are alittle better, nothing too crazy though.


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