High Flow Cats
Thread Starter
Chapter President
Joined: Apr 2007
Posts: 9,375
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From: misplaced Idahoan stuck in Albuquerque, Roughneckin on RIG 270
High Flow Cats
We all know that removing or bypassing the cat is against the law. For those of you out there that want to remove it for the increase flow, Magnaflow has released a High Flow cat for diesels. So you can have a 5" diameter cat that is high flow and still pass inspections/emissions. We have to remember that we can not talk about bypassing any federally Mandated Emissions systems on this forum. It has been Stickied and people still chat about it. Now there is an option and staying legal to boot.
Thread Starter
Chapter President
Joined: Apr 2007
Posts: 9,375
Likes: 7
From: misplaced Idahoan stuck in Albuquerque, Roughneckin on RIG 270
If we want to talk technicalities it is illegal to remove a functioning Cat in Cali,even if it is to replace it with another.The next question that comes to mind is the magnaflow cat carb approved?
There is nothing wrong with the factory cat,what I have done is to make the inlet and outlet the correct size for the application in some cases
Bob
There is nothing wrong with the factory cat,what I have done is to make the inlet and outlet the correct size for the application in some cases
Bob
I've found a Magnaflow 5" cat for a little over 1/3 of that price. Still pricy, but I guess some people will pay the price for it to stay legal. I'm also not sure if it's the high-flow one cbrahs is talking about.
If we want to talk technicalities it is illegal to remove a functioning Cat in Cali,even if it is to replace it with another.The next question that comes to mind is the magnaflow cat carb approved?
There is nothing wrong with the factory cat,what I have done is to make the inlet and outlet the correct size for the application in some cases
Bob
There is nothing wrong with the factory cat,what I have done is to make the inlet and outlet the correct size for the application in some cases
Bob
I've already looked into it... BTW, I also work for CA DMV headquarters...

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I have looked into this to replace my missing cat but just really dont care to spend $500 for it. There seem to be different options, $500 comes with more piping, $300 or so just for the cat itself. This is 4" by the way.




