Hollowing Out Catalytic Converter?
02-01-2011, 07:11 PM
#51
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ok so my next question it that one of my cats might be colapsed instead of getting a new one id just like to delete them save some money ive read that i can delete the rear two and put a bung on a staight pipe and the o2 sensors wont trigger anything off. But can i also delete the front two and still have enough back pressure from the muffler?
02-01-2011, 07:12 PM
#52
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JCP281 I have a Diablo for my 98 Cobra that I got a few years ago for the sole purpose of turning off my rear o2's when I put on a off-road H-pipe. It worked great till two months ago when I hooked it up to the computer to update it and download a new tune. I got a cel for the rear o2's when I locked it to car to download the tune. Called Diablo and they said I was screwed because it illegal to circumvent a emission device and no new tuners from any company would do it anymore, You should have put that $2,000 in tuner stuff towards a drop top cobra because 2v 4.6's are junk for making power unless to give it boost.
Last edited by bob101770; 02-01-2011 at 07:54 PM.
02-01-2011, 07:23 PM
#53
ok so my next question it that one of my cats might be colapsed instead of getting a new one id just like to delete them save some money ive read that i can delete the rear two and put a bung on a staight pipe and the o2 sensors wont trigger anything off. But can i also delete the front two and still have enough back pressure from the muffler?
Please don't delete the fronts. If you want to get rid of them due to sound volume just do hi flows. Here's a few reasons to not totally delete the fronts: 1. There's no improvement in performance. 2. It's illegal. Yes most cops won't look but it's a hefty fine if they do. 3. I'm not a tree hugger, but the cats do serve a purpose for the air quality.
02-01-2011, 08:15 PM
#54
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First read this about backpressure: https://www.f150forum.com/f11/exhaus...re-myth-78102/
Please don't delete the fronts. If you want to get rid of them due to sound volume just do hi flows. Here's a few reasons to not totally delete the fronts: 1. There's no improvement in performance. 2. It's illegal. Yes most cops won't look but it's a hefty fine if they do. 3. I'm not a tree hugger, but the cats do serve a purpose for the air quality.
Please don't delete the fronts. If you want to get rid of them due to sound volume just do hi flows. Here's a few reasons to not totally delete the fronts: 1. There's no improvement in performance. 2. It's illegal. Yes most cops won't look but it's a hefty fine if they do. 3. I'm not a tree hugger, but the cats do serve a purpose for the air quality.
02-01-2011, 08:22 PM
#55
Cost you thousands? Look at Performance peddler and Magnaflow 94106, the cats are around $60 a piece. Get two and weld them in place of the fronts. The fronts are needed for the reasons listed above.
02-01-2011, 08:37 PM
#56
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oh thanx for the info i thought cats were pretty hefty in price i never even thouhgt of going with magnaflo's. if it comes to new cat i guess 60$x2 and deleting the rears and just puttin the o2 sensors into a staight pipe is what ill do. i just have to find a magnaflow dealer here in manitoba
03-03-2015, 10:20 PM
#57
Senior Member
Those that say they live in Texas, where in Texas do you reside?
Reason I ask is because I live in S.A. and would like to delete my cats on my 2008 Ford F-150 FX4.
Reason I ask is because I live in S.A. and would like to delete my cats on my 2008 Ford F-150 FX4.
03-04-2015, 08:53 PM
#58
about an hour from Texas a&m an the shop my truck gets inspected is a 2 bay shop about the size of a sonic drive in but it never fails the inspection no extra charge
01-31-2020, 08:59 PM
#59
Senior Member
That is the front cat, there should be another O2 sensor in front of it.
Attachment 506010
Attachment 506010
The following 2 users liked this post by mbb:
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