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Old 03-31-2013, 02:29 PM
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5 Inch Exhaust Question

I searched the forums for this question, but couldn't find an answer. I'm wanting to do a 5 inch exhaust to my '04, but I can't straight pipe the truck, as I can't afford to pay the fine for not having a cat...Has anyone done a 5 inch exhaust and kept the cat? I'm looking to replace the down pipe as well when doing the exhaust.
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Old 03-31-2013, 02:32 PM
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Well you could do a cat back, that would give you a 5 inch kinda...and then for the down pipe I'm not sure....
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Old 03-31-2013, 02:34 PM
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Why waste the money in that case?
Or you could hollow the cat.
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Old 03-31-2013, 02:57 PM
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I didn't mean to keep the stock cat, but to buy an exhaust system that still allows the use of a cat. But I haven't found a cat that has a bigger diameter so I can run the larger exhaust.
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Old 03-31-2013, 03:50 PM
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MagnaFlow Exhaust Part 60012 - Magnaflow Universal Catalytic Converter
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Old 03-31-2013, 04:08 PM
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And there you have it. No use doing a 5" system with a 3.5" cat in the system.
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Old 03-31-2013, 04:19 PM
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Thanks for the link, not sure how I missed that.
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Old 03-31-2013, 04:22 PM
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Quote:
Originally Posted by PGreenSVT View Post
And there you have it. No use doing a 5" system with a 3.5" cat in the system.
Sorry I must have not worded what I was trying to say correctly. Now I should be able to buy just about any stainless steel turbo back exhaust and be able to use that cat correct?
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Old 03-31-2013, 06:45 PM
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Yes it would probably require some cutting but would fit. Might want to look into a full magma flow system as it might be cheaper, you can pick up a full exhaust for the price of that cat
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Old 04-01-2013, 10:07 AM
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Quote:
Originally Posted by dieselburner21 View Post
Yes it would probably require some cutting but would fit. Might want to look into a full magma flow system as it might be cheaper, you can pick up a full exhaust for the price of that cat
Well the cheapest 5 inch I found was at XDP but I still have to add the cat and it brings me up to $770ish..

Magnaflow 5" Turbo-Back Custom Builder Pipe Kit 17993
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