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post #1 of 13 Old 03-01-2011, 02:34 PM Thread Starter
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Confused about exhausts

So I wanna get a 4in and I wanna be able to take the cat on and off. I know i can get the turbo back on-road and a delete pipe and that works, but can i do the same with the off-road? Basically i'm just asking whats the difference between the two i guess..

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post #2 of 13 Old 03-01-2011, 06:47 PM
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Ok if i get what your sayin the off-road kit does not have a cat in it. Usually those are either straight pipes or have only a muffler. The on-road either has a cat with it or uses the stock cat. Depending on what you want to do you could go to a muffler shop and get a piece of 3.5" pipe and just cut your cat out. Then you could just clamp the cat in and out. Hope that helps!


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post #3 of 13 Old 03-02-2011, 06:36 AM
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The "offroad" exhausts are just a straight pipe all the way through and have to be cut and fitted with a delete pipe or your cat. Also the ones that use your stock cat go down to 3.5" to use the stock cat and the offroad exhausts are 4" all the way through I beleieve. I went with the 4" tb and the cat delete.

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post #4 of 13 Old 03-02-2011, 07:23 AM Thread Starter
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Ok thanks. I think I'll just get the on-road and get the cat test pipe.

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post #5 of 13 Old 03-02-2011, 11:56 AM
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You can just have 4" to 3.5" reducers welded to your Cat and then use 4" band clamps to hold either that or a same length 4" tube in the exhaust. Perfect solution and take you about 15 minutes to swap out when needed.
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post #6 of 13 Old 03-02-2011, 12:04 PM Thread Starter
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Thats a good idea. Basically what I'm getting at is I know the cat has that special end on it and I just wanted to know if you got the off-road would your cat be able to be put in if need be or do you just have to get the system that allows for the cat.

2006 F-350 CCSB Lariat
MBRP 4" Exhaust, ARPs, Barder Stage 2 turbo, S&B CAI, TSD SPD, Warren Competition transmission, Edge CTS, Coolant Filter, High Idle Mod, CCV Mod, Zoodad, Newton Leveling kit, Fuel Mavericks 20x9 , Pioneer DVD head-unit, JL Stealthbox and JL Slash 500/1v2 amp
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post #7 of 13 Old 03-02-2011, 12:12 PM
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Quote:
Originally Posted by Fox Hunt View Post
Thats a good idea. Basically what I'm getting at is I know the cat has that special end on it and I just wanted to know if you got the off-road would your cat be able to be put in if need be or do you just have to get the system that allows for the cat.
why would you wanna keep the restrictive cat on there??



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post #8 of 13 Old 03-02-2011, 12:42 PM Thread Starter
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I dont want to but should I need to put it on for tests I can. I live in California too

2006 F-350 CCSB Lariat
MBRP 4" Exhaust, ARPs, Barder Stage 2 turbo, S&B CAI, TSD SPD, Warren Competition transmission, Edge CTS, Coolant Filter, High Idle Mod, CCV Mod, Zoodad, Newton Leveling kit, Fuel Mavericks 20x9 , Pioneer DVD head-unit, JL Stealthbox and JL Slash 500/1v2 amp
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post #9 of 13 Old 03-02-2011, 01:11 PM
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Its not a cat. Get rid of it and be happy Pm sent
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post #10 of 13 Old 03-03-2011, 07:54 AM
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Quote:
Originally Posted by Fox Hunt View Post
Thats a good idea. Basically what I'm getting at is I know the cat has that special end on it and I just wanted to know if you got the off-road would your cat be able to be put in if need be or do you just have to get the system that allows for the cat.
Get the off road system. Cut the pipes about 3" out from the cat on both ends getting rid of that ridiculous bolt on end. Get a couple 3.5" to 4" reducers and get them welded to the cat. Measure the length of the cat assy from end to end. Cut that much out of the the off road 4" where you will mount the cat. Now take a couple of 4" band clamps and either put the plain pipe in or the cat in. This is child's play.


When you get done it will look like this at both ends of the pipe or the cat. Very sturdy and it won't leak. It doesn't crush pipes so it is easy on easy off. Just butt the 2 sections together and wrap the band clamp around it.

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