Catalytic Converter removal - Mustang Evolution

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Old 05-05-2013, 02:25 AM   #1
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Catalytic Converter removal

I was looking in to taking off my cats and I was just wondering what some of the differences I would see and what I have to do.
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Old 05-05-2013, 03:01 AM   #2
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You would feel a big difference but if you remove the cats with pipes into Either x pipe or h pipe add some good mufflers. Exhaust is pointless power wise unless you remove cats. Get a bama race tune along with it too makes a huge difference
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Old 05-05-2013, 03:09 AM   #3
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Ya, I have a tuner and borla atak axle back. I'm just scared its going to sound bad. And I read somewhere that I have to buy things to plug in to the o2 sensors.
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Old 05-05-2013, 03:14 AM   #4
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You can get the exhaust already made for the o2s or you can thread them in yourself. The check engine light will be on due to no cats but tuner solve that. And if the axle backs are muffler deletes it will be loud as hell and raspy.. Like I said if you dont have mufflers definitely a good idea to get them
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Old 05-06-2013, 03:05 PM   #5
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I was looking in to taking off my cats and I was just wondering what some of the differences I would see and what I have to do.
My 05 GT is set up like this. I have stock mufflers with no Cats. Sounds really great. The tuner will clear the code, otherwise you'll be running in "safe mode" as my mechanic put it. Its just loud enough to turn heads. If I were to go to pypes or SLP, it would kill small animals. lol.
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Old 05-06-2013, 08:48 PM   #6
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I have SLP axle backs and was thinking about getting an O/R H-pipe, would that be insanely loud? I don't want an x because its a little more raspy than the H
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Old 05-07-2013, 01:09 PM   #7
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I have SLP axle backs and was thinking about getting an O/R H-pipe, would that be insanely loud? I don't want an x because its a little more raspy than the H
It will be nasty loud with those SLP's. But it will sound really good. I would like to go louder, but my neighbors already complain about mine right now. (Yet they ride Harleys,lol) I'll post a link later of how my exhaust sounds.
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Old 05-07-2013, 01:41 PM   #8
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I have Slps and offroad X and it's awesome all the time!!!!
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Old 05-14-2013, 12:35 PM   #9
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I have Slps and offroad X and it's awesome all the time!!!!
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Old 05-15-2013, 06:12 AM   #10
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Hope you plan to save the cats to re-install when you sell the car or trade it in. No dealer can accept and sell a vehicle with the cats removed. If they do unknowingly, they can go back to you and reverse the deal. A private buyer can come back to you even if you sold the car "as is". Plus it's a 30K fine if you are caught, regardless of any local laws or lack of inspections. Good luck. At least save them for reistallation when it comes time to trading or selling the vehicle.
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Old 05-15-2013, 07:34 AM   #11
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Pypes LT, OR X pipe, Pypes violators mufflers. All straight through. Loud, tuned out the 02 code. Nothing to worry about unless you can't get the inspection done.
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Old 05-15-2013, 10:36 AM   #12
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Hope you plan to save the cats to re-install when you sell the car or trade it in. No dealer can accept and sell a vehicle with the cats removed. If they do unknowingly, they can go back to you and reverse the deal. A private buyer can come back to you even if you sold the car "as is". Plus it's a 30K fine if you are caught, regardless of any local laws or lack of inspections. Good luck. At least save them for reistallation when it comes time to trading or selling the vehicle.
I bought mine from a dealer like that. But things might be a bit different here in Louisiana.
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Old 05-16-2013, 01:44 PM   #13
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Ya, when I do take them off I plan on keeping them. I'm going to wait a while to do it because I have emissions I three months so no point of taking them and and putting them right back on.
Are there any performance gains?
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Old 05-16-2013, 01:49 PM   #14
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Dyno shows 8 to 11 who gain in a cat less x pipe. Varies from car to car a pinch but very complimentary
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Old 05-16-2013, 03:56 PM   #15
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Dyno shows 8 to 11 who gain in a cat less x pipe. Varies from car to car a pinch but very complimentary
+1
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